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Finding the Fourth Proportional to 349.18, 480.82 and 250.76

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Solution

The fourth proportional to 349.18, 480.82 and 250.76 is: 345.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.18 : 480.82 = 250.76 : x
  2. Step 2: Convert to fraction form
    349.18/480.82 = 250.76/x
  3. Step 3: Cross multiply
    349.18x = 480.82 × 250.76
  4. Step 4: Simplify right side
    349.18x = 120,570.42
  5. Step 5: Solve for x
    x = 120,570.42/349.18
  6. Step 6: Final answer
    x = 345.30

Related Problems

Find fourth proportional to 174.59, 240.41 and 125.38
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Double scale
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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.