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Finding the Fourth Proportional to 442.92, 610.74 and 377.16

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Solution

The fourth proportional to 442.92, 610.74 and 377.16 is: 520.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.92 : 610.74 = 377.16 : x
  2. Step 2: Convert to fraction form
    442.92/610.74 = 377.16/x
  3. Step 3: Cross multiply
    442.92x = 610.74 × 377.16
  4. Step 4: Simplify right side
    442.92x = 230,346.70
  5. Step 5: Solve for x
    x = 230,346.70/442.92
  6. Step 6: Final answer
    x = 520.06

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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.