Home / 281,112.28-387,944.28-153,787.86

Finding the Fourth Proportional to 281,112.28, 387,944.28 and 153,787.86

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Solution

The fourth proportional to 281,112.28, 387,944.28 and 153,787.86 is: 212,232.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,112.28 : 387,944.28 = 153,787.86 : x
  2. Step 2: Convert to fraction form
    281,112.28/387,944.28 = 153,787.86/x
  3. Step 3: Cross multiply
    281,112.28x = 387,944.28 × 153,787.86
  4. Step 4: Simplify right side
    281,112.28x = 59,661,120,620.44
  5. Step 5: Solve for x
    x = 59,661,120,620.44/281,112.28
  6. Step 6: Final answer
    x = 212,232.35

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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.