Home / 276,765.51-381,973.05-155,930.73

Finding the Fourth Proportional to 276,765.51, 381,973.05 and 155,930.73

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Solution

The fourth proportional to 276,765.51, 381,973.05 and 155,930.73 is: 215,205.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,765.51 : 381,973.05 = 155,930.73 : x
  2. Step 2: Convert to fraction form
    276,765.51/381,973.05 = 155,930.73/x
  3. Step 3: Cross multiply
    276,765.51x = 381,973.05 × 155,930.73
  4. Step 4: Simplify right side
    276,765.51x = 59,561,336,526.83
  5. Step 5: Solve for x
    x = 59,561,336,526.83/276,765.51
  6. Step 6: Final answer
    x = 215,205.05

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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.