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Finding the Fourth Proportional to 436,228.38, 654,342.62 and 136,708.92

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Solution

The fourth proportional to 436,228.38, 654,342.62 and 136,708.92 is: 205,063.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,228.38 : 654,342.62 = 136,708.92 : x
  2. Step 2: Convert to fraction form
    436,228.38/654,342.62 = 136,708.92/x
  3. Step 3: Cross multiply
    436,228.38x = 654,342.62 × 136,708.92
  4. Step 4: Simplify right side
    436,228.38x = 89,454,472,206.63
  5. Step 5: Solve for x
    x = 89,454,472,206.63/436,228.38
  6. Step 6: Final answer
    x = 205,063.39

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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.