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Finding the Fourth Proportional to 510.54, 766.26 and 336.72

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Solution

The fourth proportional to 510.54, 766.26 and 336.72 is: 505.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.54 : 766.26 = 336.72 : x
  2. Step 2: Convert to fraction form
    510.54/766.26 = 336.72/x
  3. Step 3: Cross multiply
    510.54x = 766.26 × 336.72
  4. Step 4: Simplify right side
    510.54x = 258,015.07
  5. Step 5: Solve for x
    x = 258,015.07/510.54
  6. Step 6: Final answer
    x = 505.38

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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.