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Finding the Fourth Proportional to 445,905.92, 615,309.54 and 264,586.61

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Solution

The fourth proportional to 445,905.92, 615,309.54 and 264,586.61 is: 365,105.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,905.92 : 615,309.54 = 264,586.61 : x
  2. Step 2: Convert to fraction form
    445,905.92/615,309.54 = 264,586.61/x
  3. Step 3: Cross multiply
    445,905.92x = 615,309.54 × 264,586.61
  4. Step 4: Simplify right side
    445,905.92x = 162,802,665,289.26
  5. Step 5: Solve for x
    x = 162,802,665,289.26/445,905.92
  6. Step 6: Final answer
    x = 365,105.41

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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.