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Finding the Fourth Proportional to 387,143.22, 580,717.71 and 106,675.86

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Solution

The fourth proportional to 387,143.22, 580,717.71 and 106,675.86 is: 160,014.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,143.22 : 580,717.71 = 106,675.86 : x
  2. Step 2: Convert to fraction form
    387,143.22/580,717.71 = 106,675.86/x
  3. Step 3: Cross multiply
    387,143.22x = 580,717.71 × 106,675.86
  4. Step 4: Simplify right side
    387,143.22x = 61,948,561,131.48
  5. Step 5: Solve for x
    x = 61,948,561,131.48/387,143.22
  6. Step 6: Final answer
    x = 160,014.58

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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.