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Finding the Fourth Proportional to 474.03, 651.52 and 418.43

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Solution

The fourth proportional to 474.03, 651.52 and 418.43 is: 575.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.03 : 651.52 = 418.43 : x
  2. Step 2: Convert to fraction form
    474.03/651.52 = 418.43/x
  3. Step 3: Cross multiply
    474.03x = 651.52 × 418.43
  4. Step 4: Simplify right side
    474.03x = 272,617.67
  5. Step 5: Solve for x
    x = 272,617.67/474.03
  6. Step 6: Final answer
    x = 575.11

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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.