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Finding the Fourth Proportional to 624.30, 936.45 and 191.46

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Solution

The fourth proportional to 624.30, 936.45 and 191.46 is: 287.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.30 : 936.45 = 191.46 : x
  2. Step 2: Convert to fraction form
    624.30/936.45 = 191.46/x
  3. Step 3: Cross multiply
    624.30x = 936.45 × 191.46
  4. Step 4: Simplify right side
    624.30x = 179,292.72
  5. Step 5: Solve for x
    x = 179,292.72/624.30
  6. Step 6: Final answer
    x = 287.19

Related Problems

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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.