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Finding the Fourth Proportional to 479.93, 662.29 and 267.24

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Solution

The fourth proportional to 479.93, 662.29 and 267.24 is: 368.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.93 : 662.29 = 267.24 : x
  2. Step 2: Convert to fraction form
    479.93/662.29 = 267.24/x
  3. Step 3: Cross multiply
    479.93x = 662.29 × 267.24
  4. Step 4: Simplify right side
    479.93x = 176,990.71
  5. Step 5: Solve for x
    x = 176,990.71/479.93
  6. Step 6: Final answer
    x = 368.78

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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.