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Finding the Fourth Proportional to 215,376.64, 297,198.29 and 124,761.71

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Solution

The fourth proportional to 215,376.64, 297,198.29 and 124,761.71 is: 172,158.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,376.64 : 297,198.29 = 124,761.71 : x
  2. Step 2: Convert to fraction form
    215,376.64/297,198.29 = 124,761.71/x
  3. Step 3: Cross multiply
    215,376.64x = 297,198.29 × 124,761.71
  4. Step 4: Simplify right side
    215,376.64x = 37,078,967,924.38
  5. Step 5: Solve for x
    x = 37,078,967,924.38/215,376.64
  6. Step 6: Final answer
    x = 172,158.73

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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.