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Finding the Fourth Proportional to 510,478.20, 765,538.79 and 150,553.58

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Solution

The fourth proportional to 510,478.20, 765,538.79 and 150,553.58 is: 225,777.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,478.20 : 765,538.79 = 150,553.58 : x
  2. Step 2: Convert to fraction form
    510,478.20/765,538.79 = 150,553.58/x
  3. Step 3: Cross multiply
    510,478.20x = 765,538.79 × 150,553.58
  4. Step 4: Simplify right side
    510,478.20x = 115,254,607,753.60
  5. Step 5: Solve for x
    x = 115,254,607,753.60/510,478.20
  6. Step 6: Final answer
    x = 225,777.73

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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.