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Finding the Fourth Proportional to 257,565.70, 386,348.55 and 244,443.70

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Solution

The fourth proportional to 257,565.70, 386,348.55 and 244,443.70 is: 366,665.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,565.70 : 386,348.55 = 244,443.70 : x
  2. Step 2: Convert to fraction form
    257,565.70/386,348.55 = 244,443.70/x
  3. Step 3: Cross multiply
    257,565.70x = 386,348.55 × 244,443.70
  4. Step 4: Simplify right side
    257,565.70x = 94,440,469,051.64
  5. Step 5: Solve for x
    x = 94,440,469,051.64/257,565.70
  6. Step 6: Final answer
    x = 366,665.55

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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.