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Finding the Fourth Proportional to 543.02, 748.95 and 468.47

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Solution

The fourth proportional to 543.02, 748.95 and 468.47 is: 646.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.02 : 748.95 = 468.47 : x
  2. Step 2: Convert to fraction form
    543.02/748.95 = 468.47/x
  3. Step 3: Cross multiply
    543.02x = 748.95 × 468.47
  4. Step 4: Simplify right side
    543.02x = 350,856.86
  5. Step 5: Solve for x
    x = 350,856.86/543.02
  6. Step 6: Final answer
    x = 646.13

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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.