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Finding the Fourth Proportional to 225,503.28, 311,190.80 and 123,527.79

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Solution

The fourth proportional to 225,503.28, 311,190.80 and 123,527.79 is: 170,466.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,503.28 : 311,190.80 = 123,527.79 : x
  2. Step 2: Convert to fraction form
    225,503.28/311,190.80 = 123,527.79/x
  3. Step 3: Cross multiply
    225,503.28x = 311,190.80 × 123,527.79
  4. Step 4: Simplify right side
    225,503.28x = 38,440,711,174.69
  5. Step 5: Solve for x
    x = 38,440,711,174.69/225,503.28
  6. Step 6: Final answer
    x = 170,466.31

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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.