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Finding the Fourth Proportional to 508.68, 762.54 and 248.39

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Solution

The fourth proportional to 508.68, 762.54 and 248.39 is: 372.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.68 : 762.54 = 248.39 : x
  2. Step 2: Convert to fraction form
    508.68/762.54 = 248.39/x
  3. Step 3: Cross multiply
    508.68x = 762.54 × 248.39
  4. Step 4: Simplify right side
    508.68x = 189,403.50
  5. Step 5: Solve for x
    x = 189,403.50/508.68
  6. Step 6: Final answer
    x = 372.34

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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.