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Finding the Fourth Proportional to 440,660.28, 660,872.34 and 191,283

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Solution

The fourth proportional to 440,660.28, 660,872.34 and 191,283 is: 286,873.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,660.28 : 660,872.34 = 191,283 : x
  2. Step 2: Convert to fraction form
    440,660.28/660,872.34 = 191,283/x
  3. Step 3: Cross multiply
    440,660.28x = 660,872.34 × 191,283
  4. Step 4: Simplify right side
    440,660.28x = 126,413,643,812.22
  5. Step 5: Solve for x
    x = 126,413,643,812.22/440,660.28
  6. Step 6: Final answer
    x = 286,873.24

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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.