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Finding the Fourth Proportional to 545.63, 753.17 and 349.29

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Solution

The fourth proportional to 545.63, 753.17 and 349.29 is: 482.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.63 : 753.17 = 349.29 : x
  2. Step 2: Convert to fraction form
    545.63/753.17 = 349.29/x
  3. Step 3: Cross multiply
    545.63x = 753.17 × 349.29
  4. Step 4: Simplify right side
    545.63x = 263,073.00
  5. Step 5: Solve for x
    x = 263,073.00/545.63
  6. Step 6: Final answer
    x = 482.15

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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.