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Finding the Fourth Proportional to 632.46, 948.24 and 339.96

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Solution

The fourth proportional to 632.46, 948.24 and 339.96 is: 509.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.46 : 948.24 = 339.96 : x
  2. Step 2: Convert to fraction form
    632.46/948.24 = 339.96/x
  3. Step 3: Cross multiply
    632.46x = 948.24 × 339.96
  4. Step 4: Simplify right side
    632.46x = 322,363.67
  5. Step 5: Solve for x
    x = 322,363.67/632.46
  6. Step 6: Final answer
    x = 509.70

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.