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Finding the Fourth Proportional to 546.85, 753.15 and 498.25

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Solution

The fourth proportional to 546.85, 753.15 and 498.25 is: 686.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.85 : 753.15 = 498.25 : x
  2. Step 2: Convert to fraction form
    546.85/753.15 = 498.25/x
  3. Step 3: Cross multiply
    546.85x = 753.15 × 498.25
  4. Step 4: Simplify right side
    546.85x = 375,256.99
  5. Step 5: Solve for x
    x = 375,256.99/546.85
  6. Step 6: Final answer
    x = 686.22

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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.