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Finding the Fourth Proportional to 708.06, 1,062.36 and 275.52

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Solution

The fourth proportional to 708.06, 1,062.36 and 275.52 is: 413.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    708.06 : 1,062.36 = 275.52 : x
  2. Step 2: Convert to fraction form
    708.06/1,062.36 = 275.52/x
  3. Step 3: Cross multiply
    708.06x = 1,062.36 × 275.52
  4. Step 4: Simplify right side
    708.06x = 292,701.43
  5. Step 5: Solve for x
    x = 292,701.43/708.06
  6. Step 6: Final answer
    x = 413.39

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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.