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Finding the Fourth Proportional to 225,737.50, 311,515.66 and 123,768.63

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Solution

The fourth proportional to 225,737.50, 311,515.66 and 123,768.63 is: 170,799.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,737.50 : 311,515.66 = 123,768.63 : x
  2. Step 2: Convert to fraction form
    225,737.50/311,515.66 = 123,768.63/x
  3. Step 3: Cross multiply
    225,737.50x = 311,515.66 × 123,768.63
  4. Step 4: Simplify right side
    225,737.50x = 38,555,864,594.75
  5. Step 5: Solve for x
    x = 38,555,864,594.75/225,737.50
  6. Step 6: Final answer
    x = 170,799.56

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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.