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Finding the Fourth Proportional to 424,012.17, 636,015.02 and 108,468.57

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Solution

The fourth proportional to 424,012.17, 636,015.02 and 108,468.57 is: 162,702.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,012.17 : 636,015.02 = 108,468.57 : x
  2. Step 2: Convert to fraction form
    424,012.17/636,015.02 = 108,468.57/x
  3. Step 3: Cross multiply
    424,012.17x = 636,015.02 × 108,468.57
  4. Step 4: Simplify right side
    424,012.17x = 68,987,639,175.58
  5. Step 5: Solve for x
    x = 68,987,639,175.58/424,012.17
  6. Step 6: Final answer
    x = 162,702.03

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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.