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Finding the Fourth Proportional to 442.06, 610.06 and 245.57

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Solution

The fourth proportional to 442.06, 610.06 and 245.57 is: 338.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.06 : 610.06 = 245.57 : x
  2. Step 2: Convert to fraction form
    442.06/610.06 = 245.57/x
  3. Step 3: Cross multiply
    442.06x = 610.06 × 245.57
  4. Step 4: Simplify right side
    442.06x = 149,809.38
  5. Step 5: Solve for x
    x = 149,809.38/442.06
  6. Step 6: Final answer
    x = 338.89

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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.