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Finding the Fourth Proportional to 417.42, 576.18 and 352.26

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Solution

The fourth proportional to 417.42, 576.18 and 352.26 is: 486.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    417.42 : 576.18 = 352.26 : x
  2. Step 2: Convert to fraction form
    417.42/576.18 = 352.26/x
  3. Step 3: Cross multiply
    417.42x = 576.18 × 352.26
  4. Step 4: Simplify right side
    417.42x = 202,965.17
  5. Step 5: Solve for x
    x = 202,965.17/417.42
  6. Step 6: Final answer
    x = 486.24

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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.