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Finding the Fourth Proportional to 444.31, 612.89 and 267.15

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Solution

The fourth proportional to 444.31, 612.89 and 267.15 is: 368.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.31 : 612.89 = 267.15 : x
  2. Step 2: Convert to fraction form
    444.31/612.89 = 267.15/x
  3. Step 3: Cross multiply
    444.31x = 612.89 × 267.15
  4. Step 4: Simplify right side
    444.31x = 163,732.83
  5. Step 5: Solve for x
    x = 163,732.83/444.31
  6. Step 6: Final answer
    x = 368.51

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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.