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Finding the Fourth Proportional to 497.79, 746.64 and 173.13

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Solution

The fourth proportional to 497.79, 746.64 and 173.13 is: 259.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.79 : 746.64 = 173.13 : x
  2. Step 2: Convert to fraction form
    497.79/746.64 = 173.13/x
  3. Step 3: Cross multiply
    497.79x = 746.64 × 173.13
  4. Step 4: Simplify right side
    497.79x = 129,265.78
  5. Step 5: Solve for x
    x = 129,265.78/497.79
  6. Step 6: Final answer
    x = 259.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.