Home / 276,770.40-381,979.44-155,935.01

Finding the Fourth Proportional to 276,770.40, 381,979.44 and 155,935.01

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Solution

The fourth proportional to 276,770.40, 381,979.44 and 155,935.01 is: 215,210.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,770.40 : 381,979.44 = 155,935.01 : x
  2. Step 2: Convert to fraction form
    276,770.40/381,979.44 = 155,935.01/x
  3. Step 3: Cross multiply
    276,770.40x = 381,979.44 × 155,935.01
  4. Step 4: Simplify right side
    276,770.40x = 59,563,965,886.30
  5. Step 5: Solve for x
    x = 59,563,965,886.30/276,770.40
  6. Step 6: Final answer
    x = 215,210.75

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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.