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Finding the Fourth Proportional to 624.75, 862.31 and 362.92

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Solution

The fourth proportional to 624.75, 862.31 and 362.92 is: 500.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.75 : 862.31 = 362.92 : x
  2. Step 2: Convert to fraction form
    624.75/862.31 = 362.92/x
  3. Step 3: Cross multiply
    624.75x = 862.31 × 362.92
  4. Step 4: Simplify right side
    624.75x = 312,949.55
  5. Step 5: Solve for x
    x = 312,949.55/624.75
  6. Step 6: Final answer
    x = 500.92

Related Problems

Find fourth proportional to 312.38, 431.16 and 181.46
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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.