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Finding the Fourth Proportional to 675.35, 1,013.09 and 242.47

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Solution

The fourth proportional to 675.35, 1,013.09 and 242.47 is: 363.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.35 : 1,013.09 = 242.47 : x
  2. Step 2: Convert to fraction form
    675.35/1,013.09 = 242.47/x
  3. Step 3: Cross multiply
    675.35x = 1,013.09 × 242.47
  4. Step 4: Simplify right side
    675.35x = 245,640.19
  5. Step 5: Solve for x
    x = 245,640.19/675.35
  6. Step 6: Final answer
    x = 363.73

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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.