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Finding the Fourth Proportional to 270,992.52, 406,342.17 and 215,191.62

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Solution

The fourth proportional to 270,992.52, 406,342.17 and 215,191.62 is: 322,671.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,992.52 : 406,342.17 = 215,191.62 : x
  2. Step 2: Convert to fraction form
    270,992.52/406,342.17 = 215,191.62/x
  3. Step 3: Cross multiply
    270,992.52x = 406,342.17 × 215,191.62
  4. Step 4: Simplify right side
    270,992.52x = 87,441,429,836.62
  5. Step 5: Solve for x
    x = 87,441,429,836.62/270,992.52
  6. Step 6: Final answer
    x = 322,671.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.