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Finding the Fourth Proportional to 566.61, 781.56 and 525.57

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Solution

The fourth proportional to 566.61, 781.56 and 525.57 is: 724.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    566.61 : 781.56 = 525.57 : x
  2. Step 2: Convert to fraction form
    566.61/781.56 = 525.57/x
  3. Step 3: Cross multiply
    566.61x = 781.56 × 525.57
  4. Step 4: Simplify right side
    566.61x = 410,764.49
  5. Step 5: Solve for x
    x = 410,764.49/566.61
  6. Step 6: Final answer
    x = 724.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.