Home / 276,181.66-381,127.06-155,322.90

Finding the Fourth Proportional to 276,181.66, 381,127.06 and 155,322.90

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Solution

The fourth proportional to 276,181.66, 381,127.06 and 155,322.90 is: 214,343.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,181.66 : 381,127.06 = 155,322.90 : x
  2. Step 2: Convert to fraction form
    276,181.66/381,127.06 = 155,322.90/x
  3. Step 3: Cross multiply
    276,181.66x = 381,127.06 × 155,322.90
  4. Step 4: Simplify right side
    276,181.66x = 59,197,760,227.67
  5. Step 5: Solve for x
    x = 59,197,760,227.67/276,181.66
  6. Step 6: Final answer
    x = 214,343.56

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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.