Home / 276,321.75-381,324.02-157,089.75

Finding the Fourth Proportional to 276,321.75, 381,324.02 and 157,089.75

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Solution

The fourth proportional to 276,321.75, 381,324.02 and 157,089.75 is: 216,783.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,321.75 : 381,324.02 = 157,089.75 : x
  2. Step 2: Convert to fraction form
    276,321.75/381,324.02 = 157,089.75/x
  3. Step 3: Cross multiply
    276,321.75x = 381,324.02 × 157,089.75
  4. Step 4: Simplify right side
    276,321.75x = 59,902,094,970.80
  5. Step 5: Solve for x
    x = 59,902,094,970.80/276,321.75
  6. Step 6: Final answer
    x = 216,783.86

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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.