Home / 225,852.28-311,666.79-135,154.69

Finding the Fourth Proportional to 225,852.28, 311,666.79 and 135,154.69

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Solution

The fourth proportional to 225,852.28, 311,666.79 and 135,154.69 is: 186,507.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,852.28 : 311,666.79 = 135,154.69 : x
  2. Step 2: Convert to fraction form
    225,852.28/311,666.79 = 135,154.69/x
  3. Step 3: Cross multiply
    225,852.28x = 311,666.79 × 135,154.69
  4. Step 4: Simplify right side
    225,852.28x = 42,123,228,385.75
  5. Step 5: Solve for x
    x = 42,123,228,385.75/225,852.28
  6. Step 6: Final answer
    x = 186,507.87

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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.