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Finding the Fourth Proportional to 506.80, 760.20 and 250.32

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Solution

The fourth proportional to 506.80, 760.20 and 250.32 is: 375.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.80 : 760.20 = 250.32 : x
  2. Step 2: Convert to fraction form
    506.80/760.20 = 250.32/x
  3. Step 3: Cross multiply
    506.80x = 760.20 × 250.32
  4. Step 4: Simplify right side
    506.80x = 190,293.26
  5. Step 5: Solve for x
    x = 190,293.26/506.80
  6. Step 6: Final answer
    x = 375.48

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Half scale
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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.