Home / 225,701.55-311,501.30-130,189.59

Finding the Fourth Proportional to 225,701.55, 311,501.30 and 130,189.59

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Solution

The fourth proportional to 225,701.55, 311,501.30 and 130,189.59 is: 179,680.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,701.55 : 311,501.30 = 130,189.59 : x
  2. Step 2: Convert to fraction form
    225,701.55/311,501.30 = 130,189.59/x
  3. Step 3: Cross multiply
    225,701.55x = 311,501.30 × 130,189.59
  4. Step 4: Simplify right side
    225,701.55x = 40,554,225,880.52
  5. Step 5: Solve for x
    x = 40,554,225,880.52/225,701.55
  6. Step 6: Final answer
    x = 179,680.76

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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.