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Finding the Fourth Proportional to 137,918.20, 206,877.30 and 44,433.40

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Solution

The fourth proportional to 137,918.20, 206,877.30 and 44,433.40 is: 66,650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,918.20 : 206,877.30 = 44,433.40 : x
  2. Step 2: Convert to fraction form
    137,918.20/206,877.30 = 44,433.40/x
  3. Step 3: Cross multiply
    137,918.20x = 206,877.30 × 44,433.40
  4. Step 4: Simplify right side
    137,918.20x = 9,192,261,821.82
  5. Step 5: Solve for x
    x = 9,192,261,821.82/137,918.20
  6. Step 6: Final answer
    x = 66,650.10

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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.