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Finding the Fourth Proportional to 482,381.16, 724,005.42 and 257,933.45

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Solution

The fourth proportional to 482,381.16, 724,005.42 and 257,933.45 is: 387,132.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,381.16 : 724,005.42 = 257,933.45 : x
  2. Step 2: Convert to fraction form
    482,381.16/724,005.42 = 257,933.45/x
  3. Step 3: Cross multiply
    482,381.16x = 724,005.42 × 257,933.45
  4. Step 4: Simplify right side
    482,381.16x = 186,745,212,179.27
  5. Step 5: Solve for x
    x = 186,745,212,179.27/482,381.16
  6. Step 6: Final answer
    x = 387,132.06

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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.