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Finding the Fourth Proportional to 276,569.82, 381,728.43 and 181,020.87

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Solution

The fourth proportional to 276,569.82, 381,728.43 and 181,020.87 is: 249,849.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,569.82 : 381,728.43 = 181,020.87 : x
  2. Step 2: Convert to fraction form
    276,569.82/381,728.43 = 181,020.87/x
  3. Step 3: Cross multiply
    276,569.82x = 381,728.43 × 181,020.87
  4. Step 4: Simplify right side
    276,569.82x = 69,100,812,502.33
  5. Step 5: Solve for x
    x = 69,100,812,502.33/276,569.82
  6. Step 6: Final answer
    x = 249,849.43

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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.