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Finding the Fourth Proportional to 497.13, 686.03 and 300.60

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Solution

The fourth proportional to 497.13, 686.03 and 300.60 is: 414.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.13 : 686.03 = 300.60 : x
  2. Step 2: Convert to fraction form
    497.13/686.03 = 300.60/x
  3. Step 3: Cross multiply
    497.13x = 686.03 × 300.60
  4. Step 4: Simplify right side
    497.13x = 206,220.62
  5. Step 5: Solve for x
    x = 206,220.62/497.13
  6. Step 6: Final answer
    x = 414.82

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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.