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Finding the Fourth Proportional to 675.23, 1,012.23 and 242.29

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Solution

The fourth proportional to 675.23, 1,012.23 and 242.29 is: 363.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.23 : 1,012.23 = 242.29 : x
  2. Step 2: Convert to fraction form
    675.23/1,012.23 = 242.29/x
  3. Step 3: Cross multiply
    675.23x = 1,012.23 × 242.29
  4. Step 4: Simplify right side
    675.23x = 245,253.21
  5. Step 5: Solve for x
    x = 245,253.21/675.23
  6. Step 6: Final answer
    x = 363.21

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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.