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Finding the Fourth Proportional to 387,346.29, 581,052.91 and 106,863.54

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Solution

The fourth proportional to 387,346.29, 581,052.91 and 106,863.54 is: 160,304.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,346.29 : 581,052.91 = 106,863.54 : x
  2. Step 2: Convert to fraction form
    387,346.29/581,052.91 = 106,863.54/x
  3. Step 3: Cross multiply
    387,346.29x = 581,052.91 × 106,863.54
  4. Step 4: Simplify right side
    387,346.29x = 62,093,370,889.90
  5. Step 5: Solve for x
    x = 62,093,370,889.90/387,346.29
  6. Step 6: Final answer
    x = 160,304.55

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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.