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Finding the Fourth Proportional to 510.96, 764.37 and 348.15

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Solution

The fourth proportional to 510.96, 764.37 and 348.15 is: 520.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.96 : 764.37 = 348.15 : x
  2. Step 2: Convert to fraction form
    510.96/764.37 = 348.15/x
  3. Step 3: Cross multiply
    510.96x = 764.37 × 348.15
  4. Step 4: Simplify right side
    510.96x = 266,115.42
  5. Step 5: Solve for x
    x = 266,115.42/510.96
  6. Step 6: Final answer
    x = 520.81

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Double scale
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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.