Home / 205,979.52-284,250.40-115,335.20

Finding the Fourth Proportional to 205,979.52, 284,250.40 and 115,335.20

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Solution

The fourth proportional to 205,979.52, 284,250.40 and 115,335.20 is: 159,161.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,979.52 : 284,250.40 = 115,335.20 : x
  2. Step 2: Convert to fraction form
    205,979.52/284,250.40 = 115,335.20/x
  3. Step 3: Cross multiply
    205,979.52x = 284,250.40 × 115,335.20
  4. Step 4: Simplify right side
    205,979.52x = 32,784,076,734.08
  5. Step 5: Solve for x
    x = 32,784,076,734.08/205,979.52
  6. Step 6: Final answer
    x = 159,161.83

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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.