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Finding the Fourth Proportional to 445,903.92, 615,306.78 and 264,584.61

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Solution

The fourth proportional to 445,903.92, 615,306.78 and 264,584.61 is: 365,102.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,903.92 : 615,306.78 = 264,584.61 : x
  2. Step 2: Convert to fraction form
    445,903.92/615,306.78 = 264,584.61/x
  3. Step 3: Cross multiply
    445,903.92x = 615,306.78 × 264,584.61
  4. Step 4: Simplify right side
    445,903.92x = 162,800,704,416.66
  5. Step 5: Solve for x
    x = 162,800,704,416.66/445,903.92
  6. Step 6: Final answer
    x = 365,102.65

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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.