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Finding the Fourth Proportional to 387,377.22, 581,099.31 and 106,894.47

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Solution

The fourth proportional to 387,377.22, 581,099.31 and 106,894.47 is: 160,350.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,377.22 : 581,099.31 = 106,894.47 : x
  2. Step 2: Convert to fraction form
    387,377.22/581,099.31 = 106,894.47/x
  3. Step 3: Cross multiply
    387,377.22x = 581,099.31 × 106,894.47
  4. Step 4: Simplify right side
    387,377.22x = 62,116,302,759.82
  5. Step 5: Solve for x
    x = 62,116,302,759.82/387,377.22
  6. Step 6: Final answer
    x = 160,350.94

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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.