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Finding the Fourth Proportional to 215,654.76, 297,602.82 and 120,162.60

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Solution

The fourth proportional to 215,654.76, 297,602.82 and 120,162.60 is: 165,823.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,654.76 : 297,602.82 = 120,162.60 : x
  2. Step 2: Convert to fraction form
    215,654.76/297,602.82 = 120,162.60/x
  3. Step 3: Cross multiply
    215,654.76x = 297,602.82 × 120,162.60
  4. Step 4: Simplify right side
    215,654.76x = 35,760,728,618.53
  5. Step 5: Solve for x
    x = 35,760,728,618.53/215,654.76
  6. Step 6: Final answer
    x = 165,823.97

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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.