Home / 225,821.89-311,611.75-130,359.34

Finding the Fourth Proportional to 225,821.89, 311,611.75 and 130,359.34

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Solution

The fourth proportional to 225,821.89, 311,611.75 and 130,359.34 is: 179,882.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,821.89 : 311,611.75 = 130,359.34 : x
  2. Step 2: Convert to fraction form
    225,821.89/311,611.75 = 130,359.34/x
  3. Step 3: Cross multiply
    225,821.89x = 311,611.75 × 130,359.34
  4. Step 4: Simplify right side
    225,821.89x = 40,621,502,066.25
  5. Step 5: Solve for x
    x = 40,621,502,066.25/225,821.89
  6. Step 6: Final answer
    x = 179,882.92

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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.