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Finding the Fourth Proportional to 445,497.40, 614,778.96 and 251,902

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Solution

The fourth proportional to 445,497.40, 614,778.96 and 251,902 is: 347,620.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,497.40 : 614,778.96 = 251,902 : x
  2. Step 2: Convert to fraction form
    445,497.40/614,778.96 = 251,902/x
  3. Step 3: Cross multiply
    445,497.40x = 614,778.96 × 251,902
  4. Step 4: Simplify right side
    445,497.40x = 154,864,049,581.92
  5. Step 5: Solve for x
    x = 154,864,049,581.92/445,497.40
  6. Step 6: Final answer
    x = 347,620.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.