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Finding the Fourth Proportional to 650.80, 976.13 and 342.53

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Solution

The fourth proportional to 650.80, 976.13 and 342.53 is: 513.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.80 : 976.13 = 342.53 : x
  2. Step 2: Convert to fraction form
    650.80/976.13 = 342.53/x
  3. Step 3: Cross multiply
    650.80x = 976.13 × 342.53
  4. Step 4: Simplify right side
    650.80x = 334,353.81
  5. Step 5: Solve for x
    x = 334,353.81/650.80
  6. Step 6: Final answer
    x = 513.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.