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Finding the Fourth Proportional to 510,125.20, 765,216.60 and 155,150.80

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Solution

The fourth proportional to 510,125.20, 765,216.60 and 155,150.80 is: 232,734.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,125.20 : 765,216.60 = 155,150.80 : x
  2. Step 2: Convert to fraction form
    510,125.20/765,216.60 = 155,150.80/x
  3. Step 3: Cross multiply
    510,125.20x = 765,216.60 × 155,150.80
  4. Step 4: Simplify right side
    510,125.20x = 118,723,967,663.28
  5. Step 5: Solve for x
    x = 118,723,967,663.28/510,125.20
  6. Step 6: Final answer
    x = 232,734.96

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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.