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Finding the Fourth Proportional to 514.54, 710.23 and 348.69

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Solution

The fourth proportional to 514.54, 710.23 and 348.69 is: 481.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    514.54 : 710.23 = 348.69 : x
  2. Step 2: Convert to fraction form
    514.54/710.23 = 348.69/x
  3. Step 3: Cross multiply
    514.54x = 710.23 × 348.69
  4. Step 4: Simplify right side
    514.54x = 247,650.10
  5. Step 5: Solve for x
    x = 247,650.10/514.54
  6. Step 6: Final answer
    x = 481.30

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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.