Home / 225,821.55-311,611.28-130,359.00

Finding the Fourth Proportional to 225,821.55, 311,611.28 and 130,359.00

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Solution

The fourth proportional to 225,821.55, 311,611.28 and 130,359.00 is: 179,882.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,821.55 : 311,611.28 = 130,359.00 : x
  2. Step 2: Convert to fraction form
    225,821.55/311,611.28 = 130,359.00/x
  3. Step 3: Cross multiply
    225,821.55x = 311,611.28 × 130,359.00
  4. Step 4: Simplify right side
    225,821.55x = 40,621,333,518.03
  5. Step 5: Solve for x
    x = 40,621,333,518.03/225,821.55
  6. Step 6: Final answer
    x = 179,882.45

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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.