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Finding the Fourth Proportional to 453.72, 626.25 and 296.55

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Solution

The fourth proportional to 453.72, 626.25 and 296.55 is: 409.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.72 : 626.25 = 296.55 : x
  2. Step 2: Convert to fraction form
    453.72/626.25 = 296.55/x
  3. Step 3: Cross multiply
    453.72x = 626.25 × 296.55
  4. Step 4: Simplify right side
    453.72x = 185,714.44
  5. Step 5: Solve for x
    x = 185,714.44/453.72
  6. Step 6: Final answer
    x = 409.32

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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.