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Finding the Fourth Proportional to 192,412.28, 288,661.02 and 66,049.70

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Solution

The fourth proportional to 192,412.28, 288,661.02 and 66,049.70 is: 99,089.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,412.28 : 288,661.02 = 66,049.70 : x
  2. Step 2: Convert to fraction form
    192,412.28/288,661.02 = 66,049.70/x
  3. Step 3: Cross multiply
    192,412.28x = 288,661.02 × 66,049.70
  4. Step 4: Simplify right side
    192,412.28x = 19,065,973,772.69
  5. Step 5: Solve for x
    x = 19,065,973,772.69/192,412.28
  6. Step 6: Final answer
    x = 99,089.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.