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Finding the Fourth Proportional to 492,539.28, 738,850.84 and 155,489.78

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Solution

The fourth proportional to 492,539.28, 738,850.84 and 155,489.78 is: 233,247.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,539.28 : 738,850.84 = 155,489.78 : x
  2. Step 2: Convert to fraction form
    492,539.28/738,850.84 = 155,489.78/x
  3. Step 3: Cross multiply
    492,539.28x = 738,850.84 × 155,489.78
  4. Step 4: Simplify right side
    492,539.28x = 114,883,754,564.42
  5. Step 5: Solve for x
    x = 114,883,754,564.42/492,539.28
  6. Step 6: Final answer
    x = 233,247.90

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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.