Home / 276,445.88-381,531.96-155,610.62

Finding the Fourth Proportional to 276,445.88, 381,531.96 and 155,610.62

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Solution

The fourth proportional to 276,445.88, 381,531.96 and 155,610.62 is: 214,763.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,445.88 : 381,531.96 = 155,610.62 : x
  2. Step 2: Convert to fraction form
    276,445.88/381,531.96 = 155,610.62/x
  3. Step 3: Cross multiply
    276,445.88x = 381,531.96 × 155,610.62
  4. Step 4: Simplify right side
    276,445.88x = 59,370,424,845.42
  5. Step 5: Solve for x
    x = 59,370,424,845.42/276,445.88
  6. Step 6: Final answer
    x = 214,763.28

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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.