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Finding the Fourth Proportional to 475.02, 655.26 and 356.52

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Solution

The fourth proportional to 475.02, 655.26 and 356.52 is: 491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.02 : 655.26 = 356.52 : x
  2. Step 2: Convert to fraction form
    475.02/655.26 = 356.52/x
  3. Step 3: Cross multiply
    475.02x = 655.26 × 356.52
  4. Step 4: Simplify right side
    475.02x = 233,613.30
  5. Step 5: Solve for x
    x = 233,613.30/475.02
  6. Step 6: Final answer
    x = 491.80

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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.