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Finding the Fourth Proportional to 675.76, 1,013.04 and 265.18

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Solution

The fourth proportional to 675.76, 1,013.04 and 265.18 is: 397.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.76 : 1,013.04 = 265.18 : x
  2. Step 2: Convert to fraction form
    675.76/1,013.04 = 265.18/x
  3. Step 3: Cross multiply
    675.76x = 1,013.04 × 265.18
  4. Step 4: Simplify right side
    675.76x = 268,637.95
  5. Step 5: Solve for x
    x = 268,637.95/675.76
  6. Step 6: Final answer
    x = 397.53

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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.