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Finding the Fourth Proportional to 296.71, 442.99 and 267.55

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Solution

The fourth proportional to 296.71, 442.99 and 267.55 is: 399.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.71 : 442.99 = 267.55 : x
  2. Step 2: Convert to fraction form
    296.71/442.99 = 267.55/x
  3. Step 3: Cross multiply
    296.71x = 442.99 × 267.55
  4. Step 4: Simplify right side
    296.71x = 118,521.97
  5. Step 5: Solve for x
    x = 118,521.97/296.71
  6. Step 6: Final answer
    x = 399.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.