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Finding the Fourth Proportional to 503,899.80, 755,849.70 and 188,315.70

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Solution

The fourth proportional to 503,899.80, 755,849.70 and 188,315.70 is: 282,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,899.80 : 755,849.70 = 188,315.70 : x
  2. Step 2: Convert to fraction form
    503,899.80/755,849.70 = 188,315.70/x
  3. Step 3: Cross multiply
    503,899.80x = 755,849.70 × 188,315.70
  4. Step 4: Simplify right side
    503,899.80x = 142,338,365,350.29
  5. Step 5: Solve for x
    x = 142,338,365,350.29/503,899.80
  6. Step 6: Final answer
    x = 282,473.55

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.