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Finding the Fourth Proportional to 215,375.92, 297,207.12 and 118,560.91

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Solution

The fourth proportional to 215,375.92, 297,207.12 and 118,560.91 is: 163,607.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,375.92 : 297,207.12 = 118,560.91 : x
  2. Step 2: Convert to fraction form
    215,375.92/297,207.12 = 118,560.91/x
  3. Step 3: Cross multiply
    215,375.92x = 297,207.12 × 118,560.91
  4. Step 4: Simplify right side
    215,375.92x = 35,237,146,605.68
  5. Step 5: Solve for x
    x = 35,237,146,605.68/215,375.92
  6. Step 6: Final answer
    x = 163,607.64

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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.