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Finding the Fourth Proportional to 266,999.70, 400,499.55 and 235,895.70

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Solution

The fourth proportional to 266,999.70, 400,499.55 and 235,895.70 is: 353,843.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,999.70 : 400,499.55 = 235,895.70 : x
  2. Step 2: Convert to fraction form
    266,999.70/400,499.55 = 235,895.70/x
  3. Step 3: Cross multiply
    266,999.70x = 400,499.55 × 235,895.70
  4. Step 4: Simplify right side
    266,999.70x = 94,476,121,696.94
  5. Step 5: Solve for x
    x = 94,476,121,696.94/266,999.70
  6. Step 6: Final answer
    x = 353,843.55

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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.