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Finding the Fourth Proportional to 475.76, 652.10 and 473.69

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Solution

The fourth proportional to 475.76, 652.10 and 473.69 is: 649.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.76 : 652.10 = 473.69 : x
  2. Step 2: Convert to fraction form
    475.76/652.10 = 473.69/x
  3. Step 3: Cross multiply
    475.76x = 652.10 × 473.69
  4. Step 4: Simplify right side
    475.76x = 308,893.25
  5. Step 5: Solve for x
    x = 308,893.25/475.76
  6. Step 6: Final answer
    x = 649.26

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.