Home / 276,810.64-381,998.68-149,486.22

Finding the Fourth Proportional to 276,810.64, 381,998.68 and 149,486.22

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Solution

The fourth proportional to 276,810.64, 381,998.68 and 149,486.22 is: 206,290.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,810.64 : 381,998.68 = 149,486.22 : x
  2. Step 2: Convert to fraction form
    276,810.64/381,998.68 = 149,486.22/x
  3. Step 3: Cross multiply
    276,810.64x = 381,998.68 × 149,486.22
  4. Step 4: Simplify right side
    276,810.64x = 57,103,538,344.47
  5. Step 5: Solve for x
    x = 57,103,538,344.47/276,810.64
  6. Step 6: Final answer
    x = 206,290.98

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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.