Home / 215,929.97-297,983.76-120,442.85

Finding the Fourth Proportional to 215,929.97, 297,983.76 and 120,442.85

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Solution

The fourth proportional to 215,929.97, 297,983.76 and 120,442.85 is: 166,211.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,929.97 : 297,983.76 = 120,442.85 : x
  2. Step 2: Convert to fraction form
    215,929.97/297,983.76 = 120,442.85/x
  3. Step 3: Cross multiply
    215,929.97x = 297,983.76 × 120,442.85
  4. Step 4: Simplify right side
    215,929.97x = 35,890,013,308.12
  5. Step 5: Solve for x
    x = 35,890,013,308.12/215,929.97
  6. Step 6: Final answer
    x = 166,211.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.