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Finding the Fourth Proportional to 215,539.99, 297,454.32 and 120,046.66

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Solution

The fourth proportional to 215,539.99, 297,454.32 and 120,046.66 is: 165,669.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,539.99 : 297,454.32 = 120,046.66 : x
  2. Step 2: Convert to fraction form
    215,539.99/297,454.32 = 120,046.66/x
  3. Step 3: Cross multiply
    215,539.99x = 297,454.32 × 120,046.66
  4. Step 4: Simplify right side
    215,539.99x = 35,708,396,874.94
  5. Step 5: Solve for x
    x = 35,708,396,874.94/215,539.99
  6. Step 6: Final answer
    x = 165,669.48

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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.