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Finding the Fourth Proportional to 749.07, 1,123.61 and 236.07

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Solution

The fourth proportional to 749.07, 1,123.61 and 236.07 is: 354.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    749.07 : 1,123.61 = 236.07 : x
  2. Step 2: Convert to fraction form
    749.07/1,123.61 = 236.07/x
  3. Step 3: Cross multiply
    749.07x = 1,123.61 × 236.07
  4. Step 4: Simplify right side
    749.07x = 265,249.43
  5. Step 5: Solve for x
    x = 265,249.43/749.07
  6. Step 6: Final answer
    x = 354.11

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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.