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Finding the Fourth Proportional to 344,601.82, 516,902.91 and 131,320

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Solution

The fourth proportional to 344,601.82, 516,902.91 and 131,320 is: 196,980.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,601.82 : 516,902.91 = 131,320 : x
  2. Step 2: Convert to fraction form
    344,601.82/516,902.91 = 131,320/x
  3. Step 3: Cross multiply
    344,601.82x = 516,902.91 × 131,320
  4. Step 4: Simplify right side
    344,601.82x = 67,879,690,141.20
  5. Step 5: Solve for x
    x = 67,879,690,141.20/344,601.82
  6. Step 6: Final answer
    x = 196,980.07

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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.