Home / 276,304.86-381,273.75-155,443.59

Finding the Fourth Proportional to 276,304.86, 381,273.75 and 155,443.59

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Solution

The fourth proportional to 276,304.86, 381,273.75 and 155,443.59 is: 214,496.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,304.86 : 381,273.75 = 155,443.59 : x
  2. Step 2: Convert to fraction form
    276,304.86/381,273.75 = 155,443.59/x
  3. Step 3: Cross multiply
    276,304.86x = 381,273.75 × 155,443.59
  4. Step 4: Simplify right side
    276,304.86x = 59,266,560,472.76
  5. Step 5: Solve for x
    x = 59,266,560,472.76/276,304.86
  6. Step 6: Final answer
    x = 214,496.99

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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.