Home / 226,400.45-312,419.89-135,711.03

Finding the Fourth Proportional to 226,400.45, 312,419.89 and 135,711.03

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Solution

The fourth proportional to 226,400.45, 312,419.89 and 135,711.03 is: 187,273.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,400.45 : 312,419.89 = 135,711.03 : x
  2. Step 2: Convert to fraction form
    226,400.45/312,419.89 = 135,711.03/x
  3. Step 3: Cross multiply
    226,400.45x = 312,419.89 × 135,711.03
  4. Step 4: Simplify right side
    226,400.45x = 42,398,825,064.39
  5. Step 5: Solve for x
    x = 42,398,825,064.39/226,400.45
  6. Step 6: Final answer
    x = 187,273.59

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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.