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Finding the Fourth Proportional to 617.52, 926.80 and 344.18

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Solution

The fourth proportional to 617.52, 926.80 and 344.18 is: 516.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.52 : 926.80 = 344.18 : x
  2. Step 2: Convert to fraction form
    617.52/926.80 = 344.18/x
  3. Step 3: Cross multiply
    617.52x = 926.80 × 344.18
  4. Step 4: Simplify right side
    617.52x = 318,986.02
  5. Step 5: Solve for x
    x = 318,986.02/617.52
  6. Step 6: Final answer
    x = 516.56

Related Problems

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Double scale
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Similar ratio
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1.5x scale

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.