Home / 225,543.30-311,282.91-130,031.34

Finding the Fourth Proportional to 225,543.30, 311,282.91 and 130,031.34

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Solution

The fourth proportional to 225,543.30, 311,282.91 and 130,031.34 is: 179,462.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,543.30 : 311,282.91 = 130,031.34 : x
  2. Step 2: Convert to fraction form
    225,543.30/311,282.91 = 130,031.34/x
  3. Step 3: Cross multiply
    225,543.30x = 311,282.91 × 130,031.34
  4. Step 4: Simplify right side
    225,543.30x = 40,476,533,906.40
  5. Step 5: Solve for x
    x = 40,476,533,906.40/225,543.30
  6. Step 6: Final answer
    x = 179,462.36

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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.