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Finding the Fourth Proportional to 215,620.52, 297,565.52 and 120,127.19

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Solution

The fourth proportional to 215,620.52, 297,565.52 and 120,127.19 is: 165,780.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,620.52 : 297,565.52 = 120,127.19 : x
  2. Step 2: Convert to fraction form
    215,620.52/297,565.52 = 120,127.19/x
  3. Step 3: Cross multiply
    215,620.52x = 297,565.52 × 120,127.19
  4. Step 4: Simplify right side
    215,620.52x = 35,745,707,670.03
  5. Step 5: Solve for x
    x = 35,745,707,670.03/215,620.52
  6. Step 6: Final answer
    x = 165,780.64

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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.