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Finding the Fourth Proportional to 312,367.38, 468,546.90 and 75,712.14

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Solution

The fourth proportional to 312,367.38, 468,546.90 and 75,712.14 is: 113,567.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,367.38 : 468,546.90 = 75,712.14 : x
  2. Step 2: Convert to fraction form
    312,367.38/468,546.90 = 75,712.14/x
  3. Step 3: Cross multiply
    312,367.38x = 468,546.90 × 75,712.14
  4. Step 4: Simplify right side
    312,367.38x = 35,474,688,489.37
  5. Step 5: Solve for x
    x = 35,474,688,489.37/312,367.38
  6. Step 6: Final answer
    x = 113,567.20

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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.