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Finding the Fourth Proportional to 442.76, 610.88 and 268.08

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Solution

The fourth proportional to 442.76, 610.88 and 268.08 is: 369.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.76 : 610.88 = 268.08 : x
  2. Step 2: Convert to fraction form
    442.76/610.88 = 268.08/x
  3. Step 3: Cross multiply
    442.76x = 610.88 × 268.08
  4. Step 4: Simplify right side
    442.76x = 163,764.71
  5. Step 5: Solve for x
    x = 163,764.71/442.76
  6. Step 6: Final answer
    x = 369.87

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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.