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Finding the Fourth Proportional to 510.87, 766.45 and 250.95

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Solution

The fourth proportional to 510.87, 766.45 and 250.95 is: 376.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.87 : 766.45 = 250.95 : x
  2. Step 2: Convert to fraction form
    510.87/766.45 = 250.95/x
  3. Step 3: Cross multiply
    510.87x = 766.45 × 250.95
  4. Step 4: Simplify right side
    510.87x = 192,339.50
  5. Step 5: Solve for x
    x = 192,339.50/510.87
  6. Step 6: Final answer
    x = 376.50

Related Problems

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Half scale
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Double scale
Find fourth proportional to 511.87, 767.95 and 251.95
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.