Home / 225,686.28-311,439.42-130,190.52

Finding the Fourth Proportional to 225,686.28, 311,439.42 and 130,190.52

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Solution

The fourth proportional to 225,686.28, 311,439.42 and 130,190.52 is: 179,658.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,686.28 : 311,439.42 = 130,190.52 : x
  2. Step 2: Convert to fraction form
    225,686.28/311,439.42 = 130,190.52/x
  3. Step 3: Cross multiply
    225,686.28x = 311,439.42 × 130,190.52
  4. Step 4: Simplify right side
    225,686.28x = 40,546,460,038.30
  5. Step 5: Solve for x
    x = 40,546,460,038.30/225,686.28
  6. Step 6: Final answer
    x = 179,658.51

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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.