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Finding the Fourth Proportional to 497.81, 746.37 and 247.61

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Solution

The fourth proportional to 497.81, 746.37 and 247.61 is: 371.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.81 : 746.37 = 247.61 : x
  2. Step 2: Convert to fraction form
    497.81/746.37 = 247.61/x
  3. Step 3: Cross multiply
    497.81x = 746.37 × 247.61
  4. Step 4: Simplify right side
    497.81x = 184,808.68
  5. Step 5: Solve for x
    x = 184,808.68/497.81
  6. Step 6: Final answer
    x = 371.24

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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.