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Finding the Fourth Proportional to 483.86, 726.17 and 354.20

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Solution

The fourth proportional to 483.86, 726.17 and 354.20 is: 531.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.86 : 726.17 = 354.20 : x
  2. Step 2: Convert to fraction form
    483.86/726.17 = 354.20/x
  3. Step 3: Cross multiply
    483.86x = 726.17 × 354.20
  4. Step 4: Simplify right side
    483.86x = 257,208.91
  5. Step 5: Solve for x
    x = 257,208.91/483.86
  6. Step 6: Final answer
    x = 531.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.