Home / 225,692.20-311,444.30-130,229.72

Finding the Fourth Proportional to 225,692.20, 311,444.30 and 130,229.72

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Solution

The fourth proportional to 225,692.20, 311,444.30 and 130,229.72 is: 179,710.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,692.20 : 311,444.30 = 130,229.72 : x
  2. Step 2: Convert to fraction form
    225,692.20/311,444.30 = 130,229.72/x
  3. Step 3: Cross multiply
    225,692.20x = 311,444.30 × 130,229.72
  4. Step 4: Simplify right side
    225,692.20x = 40,559,303,984.60
  5. Step 5: Solve for x
    x = 40,559,303,984.60/225,692.20
  6. Step 6: Final answer
    x = 179,710.70

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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.