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Finding the Fourth Proportional to 417.02, 627.72 and 296.12

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Solution

The fourth proportional to 417.02, 627.72 and 296.12 is: 445.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    417.02 : 627.72 = 296.12 : x
  2. Step 2: Convert to fraction form
    417.02/627.72 = 296.12/x
  3. Step 3: Cross multiply
    417.02x = 627.72 × 296.12
  4. Step 4: Simplify right side
    417.02x = 185,877.31
  5. Step 5: Solve for x
    x = 185,877.31/417.02
  6. Step 6: Final answer
    x = 445.73

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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.