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Finding the Fourth Proportional to 445,939.50, 615,396.52 and 267,091.50

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Solution

The fourth proportional to 445,939.50, 615,396.52 and 267,091.50 is: 368,586.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,939.50 : 615,396.52 = 267,091.50 : x
  2. Step 2: Convert to fraction form
    445,939.50/615,396.52 = 267,091.50/x
  3. Step 3: Cross multiply
    445,939.50x = 615,396.52 × 267,091.50
  4. Step 4: Simplify right side
    445,939.50x = 164,367,179,621.58
  5. Step 5: Solve for x
    x = 164,367,179,621.58/445,939.50
  6. Step 6: Final answer
    x = 368,586.28

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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.