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Finding the Fourth Proportional to 497.64, 686.72 and 273.58

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Solution

The fourth proportional to 497.64, 686.72 and 273.58 is: 377.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.64 : 686.72 = 273.58 : x
  2. Step 2: Convert to fraction form
    497.64/686.72 = 273.58/x
  3. Step 3: Cross multiply
    497.64x = 686.72 × 273.58
  4. Step 4: Simplify right side
    497.64x = 187,873.54
  5. Step 5: Solve for x
    x = 187,873.54/497.64
  6. Step 6: Final answer
    x = 377.53

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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.