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Finding the Fourth Proportional to 225,875.33, 311,717.72 and 135,213.75

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Solution

The fourth proportional to 225,875.33, 311,717.72 and 135,213.75 is: 186,600.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,875.33 : 311,717.72 = 135,213.75 : x
  2. Step 2: Convert to fraction form
    225,875.33/311,717.72 = 135,213.75/x
  3. Step 3: Cross multiply
    225,875.33x = 311,717.72 × 135,213.75
  4. Step 4: Simplify right side
    225,875.33x = 42,148,522,200.68
  5. Step 5: Solve for x
    x = 42,148,522,200.68/225,875.33
  6. Step 6: Final answer
    x = 186,600.83

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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.