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Finding the Fourth Proportional to 664,960.80, 997,246.80 and 238,447.20

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Solution

The fourth proportional to 664,960.80, 997,246.80 and 238,447.20 is: 357,601.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,960.80 : 997,246.80 = 238,447.20 : x
  2. Step 2: Convert to fraction form
    664,960.80/997,246.80 = 238,447.20/x
  3. Step 3: Cross multiply
    664,960.80x = 997,246.80 × 238,447.20
  4. Step 4: Simplify right side
    664,960.80x = 237,790,707,168.96
  5. Step 5: Solve for x
    x = 237,790,707,168.96/664,960.80
  6. Step 6: Final answer
    x = 357,601.09

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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.