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Finding the Fourth Proportional to 418,367.63, 627,545.98 and 102,827.27

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Solution

The fourth proportional to 418,367.63, 627,545.98 and 102,827.27 is: 154,239.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,367.63 : 627,545.98 = 102,827.27 : x
  2. Step 2: Convert to fraction form
    418,367.63/627,545.98 = 102,827.27/x
  3. Step 3: Cross multiply
    418,367.63x = 627,545.98 × 102,827.27
  4. Step 4: Simplify right side
    418,367.63x = 64,528,841,620.27
  5. Step 5: Solve for x
    x = 64,528,841,620.27/418,367.63
  6. Step 6: Final answer
    x = 154,239.56

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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.