Home / 276,661.11-381,799.45-155,806.58

Finding the Fourth Proportional to 276,661.11, 381,799.45 and 155,806.58

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Solution

The fourth proportional to 276,661.11, 381,799.45 and 155,806.58 is: 215,017.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,661.11 : 381,799.45 = 155,806.58 : x
  2. Step 2: Convert to fraction form
    276,661.11/381,799.45 = 155,806.58/x
  3. Step 3: Cross multiply
    276,661.11x = 381,799.45 × 155,806.58
  4. Step 4: Simplify right side
    276,661.11x = 59,486,866,550.38
  5. Step 5: Solve for x
    x = 59,486,866,550.38/276,661.11
  6. Step 6: Final answer
    x = 215,017.09

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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.