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Finding the Fourth Proportional to 510,344.38, 765,627.20 and 155,349.12

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Solution

The fourth proportional to 510,344.38, 765,627.20 and 155,349.12 is: 233,057.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,344.38 : 765,627.20 = 155,349.12 : x
  2. Step 2: Convert to fraction form
    510,344.38/765,627.20 = 155,349.12/x
  3. Step 3: Cross multiply
    510,344.38x = 765,627.20 × 155,349.12
  4. Step 4: Simplify right side
    510,344.38x = 118,939,509,077.25
  5. Step 5: Solve for x
    x = 118,939,509,077.25/510,344.38
  6. Step 6: Final answer
    x = 233,057.35

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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.