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Finding the Fourth Proportional to 387,925.92, 581,889.60 and 107,443.92

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Solution

The fourth proportional to 387,925.92, 581,889.60 and 107,443.92 is: 161,166.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,925.92 : 581,889.60 = 107,443.92 : x
  2. Step 2: Convert to fraction form
    387,925.92/581,889.60 = 107,443.92/x
  3. Step 3: Cross multiply
    387,925.92x = 581,889.60 × 107,443.92
  4. Step 4: Simplify right side
    387,925.92x = 62,520,499,631.23
  5. Step 5: Solve for x
    x = 62,520,499,631.23/387,925.92
  6. Step 6: Final answer
    x = 161,166.08

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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.