Home / 225,380.34-311,023.73-123,403.94

Finding the Fourth Proportional to 225,380.34, 311,023.73 and 123,403.94

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Solution

The fourth proportional to 225,380.34, 311,023.73 and 123,403.94 is: 170,296.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,380.34 : 311,023.73 = 123,403.94 : x
  2. Step 2: Convert to fraction form
    225,380.34/311,023.73 = 123,403.94/x
  3. Step 3: Cross multiply
    225,380.34x = 311,023.73 × 123,403.94
  4. Step 4: Simplify right side
    225,380.34x = 38,381,553,715.50
  5. Step 5: Solve for x
    x = 38,381,553,715.50/225,380.34
  6. Step 6: Final answer
    x = 170,296.81

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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.