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Finding the Fourth Proportional to 225,958.70, 311,820.27 and 130,463.34

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Solution

The fourth proportional to 225,958.70, 311,820.27 and 130,463.34 is: 180,037.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,958.70 : 311,820.27 = 130,463.34 : x
  2. Step 2: Convert to fraction form
    225,958.70/311,820.27 = 130,463.34/x
  3. Step 3: Cross multiply
    225,958.70x = 311,820.27 × 130,463.34
  4. Step 4: Simplify right side
    225,958.70x = 40,681,113,903.90
  5. Step 5: Solve for x
    x = 40,681,113,903.90/225,958.70
  6. Step 6: Final answer
    x = 180,037.83

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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.