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Finding the Fourth Proportional to 151,787.20, 227,745.60 and 72,860.80

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Solution

The fourth proportional to 151,787.20, 227,745.60 and 72,860.80 is: 109,322.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,787.20 : 227,745.60 = 72,860.80 : x
  2. Step 2: Convert to fraction form
    151,787.20/227,745.60 = 72,860.80/x
  3. Step 3: Cross multiply
    151,787.20x = 227,745.60 × 72,860.80
  4. Step 4: Simplify right side
    151,787.20x = 16,593,726,612.48
  5. Step 5: Solve for x
    x = 16,593,726,612.48/151,787.20
  6. Step 6: Final answer
    x = 109,322.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.