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Finding the Fourth Proportional to 387,497.52, 581,242.56 and 229,612.32

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Solution

The fourth proportional to 387,497.52, 581,242.56 and 229,612.32 is: 344,416.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,497.52 : 581,242.56 = 229,612.32 : x
  2. Step 2: Convert to fraction form
    387,497.52/581,242.56 = 229,612.32/x
  3. Step 3: Cross multiply
    387,497.52x = 581,242.56 × 229,612.32
  4. Step 4: Simplify right side
    387,497.52x = 133,460,452,684.34
  5. Step 5: Solve for x
    x = 133,460,452,684.34/387,497.52
  6. Step 6: Final answer
    x = 344,416.28

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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.