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Finding the Fourth Proportional to 296.56, 447.02 and 266.80

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Solution

The fourth proportional to 296.56, 447.02 and 266.80 is: 402.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.56 : 447.02 = 266.80 : x
  2. Step 2: Convert to fraction form
    296.56/447.02 = 266.80/x
  3. Step 3: Cross multiply
    296.56x = 447.02 × 266.80
  4. Step 4: Simplify right side
    296.56x = 119,264.94
  5. Step 5: Solve for x
    x = 119,264.94/296.56
  6. Step 6: Final answer
    x = 402.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.