Home / 225,701.30-311,500.95-130,189.34

Finding the Fourth Proportional to 225,701.30, 311,500.95 and 130,189.34

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Solution

The fourth proportional to 225,701.30, 311,500.95 and 130,189.34 is: 179,680.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,701.30 : 311,500.95 = 130,189.34 : x
  2. Step 2: Convert to fraction form
    225,701.30/311,500.95 = 130,189.34/x
  3. Step 3: Cross multiply
    225,701.30x = 311,500.95 × 130,189.34
  4. Step 4: Simplify right side
    225,701.30x = 40,554,103,089.87
  5. Step 5: Solve for x
    x = 40,554,103,089.87/225,701.30
  6. Step 6: Final answer
    x = 179,680.41

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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.