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Finding the Fourth Proportional to 624.67, 936.23 and 316.60

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Solution

The fourth proportional to 624.67, 936.23 and 316.60 is: 474.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.67 : 936.23 = 316.60 : x
  2. Step 2: Convert to fraction form
    624.67/936.23 = 316.60/x
  3. Step 3: Cross multiply
    624.67x = 936.23 × 316.60
  4. Step 4: Simplify right side
    624.67x = 296,406.49
  5. Step 5: Solve for x
    x = 296,406.49/624.67
  6. Step 6: Final answer
    x = 474.50

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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.