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Finding the Fourth Proportional to 494,999.80, 742,499.70 and 179,415.70

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Solution

The fourth proportional to 494,999.80, 742,499.70 and 179,415.70 is: 269,123.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,999.80 : 742,499.70 = 179,415.70 : x
  2. Step 2: Convert to fraction form
    494,999.80/742,499.70 = 179,415.70/x
  3. Step 3: Cross multiply
    494,999.80x = 742,499.70 × 179,415.70
  4. Step 4: Simplify right side
    494,999.80x = 133,216,103,425.29
  5. Step 5: Solve for x
    x = 133,216,103,425.29/494,999.80
  6. Step 6: Final answer
    x = 269,123.55

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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.