Home / 492,943.52-739,386.12-137,949.68

Finding the Fourth Proportional to 492,943.52, 739,386.12 and 137,949.68

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Solution

The fourth proportional to 492,943.52, 739,386.12 and 137,949.68 is: 206,916.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,943.52 : 739,386.12 = 137,949.68 : x
  2. Step 2: Convert to fraction form
    492,943.52/739,386.12 = 137,949.68/x
  3. Step 3: Cross multiply
    492,943.52x = 739,386.12 × 137,949.68
  4. Step 4: Simplify right side
    492,943.52x = 101,998,078,650.44
  5. Step 5: Solve for x
    x = 101,998,078,650.44/492,943.52
  6. Step 6: Final answer
    x = 206,916.36

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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.