Home / 276,129.56-381,061.07-155,269.79

Finding the Fourth Proportional to 276,129.56, 381,061.07 and 155,269.79

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Solution

The fourth proportional to 276,129.56, 381,061.07 and 155,269.79 is: 214,273.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,129.56 : 381,061.07 = 155,269.79 : x
  2. Step 2: Convert to fraction form
    276,129.56/381,061.07 = 155,269.79/x
  3. Step 3: Cross multiply
    276,129.56x = 381,061.07 × 155,269.79
  4. Step 4: Simplify right side
    276,129.56x = 59,167,272,316.08
  5. Step 5: Solve for x
    x = 59,167,272,316.08/276,129.56
  6. Step 6: Final answer
    x = 214,273.59

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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.