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Finding the Fourth Proportional to 510.68, 766.14 and 222.20

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Solution

The fourth proportional to 510.68, 766.14 and 222.20 is: 333.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.68 : 766.14 = 222.20 : x
  2. Step 2: Convert to fraction form
    510.68/766.14 = 222.20/x
  3. Step 3: Cross multiply
    510.68x = 766.14 × 222.20
  4. Step 4: Simplify right side
    510.68x = 170,236.31
  5. Step 5: Solve for x
    x = 170,236.31/510.68
  6. Step 6: Final answer
    x = 333.35

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.