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Finding the Fourth Proportional to 387,652.88, 581,490.24 and 107,170.10

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Solution

The fourth proportional to 387,652.88, 581,490.24 and 107,170.10 is: 160,758.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,652.88 : 581,490.24 = 107,170.10 : x
  2. Step 2: Convert to fraction form
    387,652.88/581,490.24 = 107,170.10/x
  3. Step 3: Cross multiply
    387,652.88x = 581,490.24 × 107,170.10
  4. Step 4: Simplify right side
    387,652.88x = 62,318,367,169.82
  5. Step 5: Solve for x
    x = 62,318,367,169.82/387,652.88
  6. Step 6: Final answer
    x = 160,758.17

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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.