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Finding the Fourth Proportional to 425.41, 587.02 and 248.32

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Solution

The fourth proportional to 425.41, 587.02 and 248.32 is: 342.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.41 : 587.02 = 248.32 : x
  2. Step 2: Convert to fraction form
    425.41/587.02 = 248.32/x
  3. Step 3: Cross multiply
    425.41x = 587.02 × 248.32
  4. Step 4: Simplify right side
    425.41x = 145,771.73
  5. Step 5: Solve for x
    x = 145,771.73/425.41
  6. Step 6: Final answer
    x = 342.66

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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.