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Finding the Fourth Proportional to 664,759.80, 996,945.30 and 238,246.20

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Solution

The fourth proportional to 664,759.80, 996,945.30 and 238,246.20 is: 357,299.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,759.80 : 996,945.30 = 238,246.20 : x
  2. Step 2: Convert to fraction form
    664,759.80/996,945.30 = 238,246.20/x
  3. Step 3: Cross multiply
    664,759.80x = 996,945.30 × 238,246.20
  4. Step 4: Simplify right side
    664,759.80x = 237,518,429,332.86
  5. Step 5: Solve for x
    x = 237,518,429,332.86/664,759.80
  6. Step 6: Final answer
    x = 357,299.63

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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.