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Finding the Fourth Proportional to 543.87, 750.26 and 347.18

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Solution

The fourth proportional to 543.87, 750.26 and 347.18 is: 478.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.87 : 750.26 = 347.18 : x
  2. Step 2: Convert to fraction form
    543.87/750.26 = 347.18/x
  3. Step 3: Cross multiply
    543.87x = 750.26 × 347.18
  4. Step 4: Simplify right side
    543.87x = 260,472.38
  5. Step 5: Solve for x
    x = 260,472.38/543.87
  6. Step 6: Final answer
    x = 478.92

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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.