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Finding the Fourth Proportional to 257,892.45, 387,002.70 and 151,276.20

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Solution

The fourth proportional to 257,892.45, 387,002.70 and 151,276.20 is: 227,010.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,892.45 : 387,002.70 = 151,276.20 : x
  2. Step 2: Convert to fraction form
    257,892.45/387,002.70 = 151,276.20/x
  3. Step 3: Cross multiply
    257,892.45x = 387,002.70 × 151,276.20
  4. Step 4: Simplify right side
    257,892.45x = 58,544,297,845.74
  5. Step 5: Solve for x
    x = 58,544,297,845.74/257,892.45
  6. Step 6: Final answer
    x = 227,010.51

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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.