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Finding the Fourth Proportional to 425.95, 587.73 and 268.61

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Solution

The fourth proportional to 425.95, 587.73 and 268.61 is: 370.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.95 : 587.73 = 268.61 : x
  2. Step 2: Convert to fraction form
    425.95/587.73 = 268.61/x
  3. Step 3: Cross multiply
    425.95x = 587.73 × 268.61
  4. Step 4: Simplify right side
    425.95x = 157,867.22
  5. Step 5: Solve for x
    x = 157,867.22/425.95
  6. Step 6: Final answer
    x = 370.63

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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.