Home / 225,821.21-311,610.81-130,358.66

Finding the Fourth Proportional to 225,821.21, 311,610.81 and 130,358.66

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Solution

The fourth proportional to 225,821.21, 311,610.81 and 130,358.66 is: 179,881.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,821.21 : 311,610.81 = 130,358.66 : x
  2. Step 2: Convert to fraction form
    225,821.21/311,610.81 = 130,358.66/x
  3. Step 3: Cross multiply
    225,821.21x = 311,610.81 × 130,358.66
  4. Step 4: Simplify right side
    225,821.21x = 40,621,165,423.27
  5. Step 5: Solve for x
    x = 40,621,165,423.27/225,821.21
  6. Step 6: Final answer
    x = 179,881.98

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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.