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Finding the Fourth Proportional to 510.49, 766.36 and 336.61

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Solution

The fourth proportional to 510.49, 766.36 and 336.61 is: 505.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.49 : 766.36 = 336.61 : x
  2. Step 2: Convert to fraction form
    510.49/766.36 = 336.61/x
  3. Step 3: Cross multiply
    510.49x = 766.36 × 336.61
  4. Step 4: Simplify right side
    510.49x = 257,964.44
  5. Step 5: Solve for x
    x = 257,964.44/510.49
  6. Step 6: Final answer
    x = 505.33

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.