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Finding the Fourth Proportional to 665,079.30, 997,424.55 and 238,565.70

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Solution

The fourth proportional to 665,079.30, 997,424.55 and 238,565.70 is: 357,778.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,079.30 : 997,424.55 = 238,565.70 : x
  2. Step 2: Convert to fraction form
    665,079.30/997,424.55 = 238,565.70/x
  3. Step 3: Cross multiply
    665,079.30x = 997,424.55 × 238,565.70
  4. Step 4: Simplify right side
    665,079.30x = 237,951,285,967.94
  5. Step 5: Solve for x
    x = 237,951,285,967.94/665,079.30
  6. Step 6: Final answer
    x = 357,778.82

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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.