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Finding the Fourth Proportional to 735.61, 1,102.65 and 365.17

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Solution

The fourth proportional to 735.61, 1,102.65 and 365.17 is: 547.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.61 : 1,102.65 = 365.17 : x
  2. Step 2: Convert to fraction form
    735.61/1,102.65 = 365.17/x
  3. Step 3: Cross multiply
    735.61x = 1,102.65 × 365.17
  4. Step 4: Simplify right side
    735.61x = 402,654.70
  5. Step 5: Solve for x
    x = 402,654.70/735.61
  6. Step 6: Final answer
    x = 547.38

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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.