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Finding the Fourth Proportional to 172,542.80, 238,238.80 and 169,787.20

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Solution

The fourth proportional to 172,542.80, 238,238.80 and 169,787.20 is: 234,434.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,542.80 : 238,238.80 = 169,787.20 : x
  2. Step 2: Convert to fraction form
    172,542.80/238,238.80 = 169,787.20/x
  3. Step 3: Cross multiply
    172,542.80x = 238,238.80 × 169,787.20
  4. Step 4: Simplify right side
    172,542.80x = 40,449,898,783.36
  5. Step 5: Solve for x
    x = 40,449,898,783.36/172,542.80
  6. Step 6: Final answer
    x = 234,434.00

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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.