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Finding the Fourth Proportional to 735.50, 1,101.71 and 324.92

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Solution

The fourth proportional to 735.50, 1,101.71 and 324.92 is: 486.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.50 : 1,101.71 = 324.92 : x
  2. Step 2: Convert to fraction form
    735.50/1,101.71 = 324.92/x
  3. Step 3: Cross multiply
    735.50x = 1,101.71 × 324.92
  4. Step 4: Simplify right side
    735.50x = 357,967.61
  5. Step 5: Solve for x
    x = 357,967.61/735.50
  6. Step 6: Final answer
    x = 486.70

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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.