Home / 212,305.62-292,979.49-115,512.42

Finding the Fourth Proportional to 212,305.62, 292,979.49 and 115,512.42

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Solution

The fourth proportional to 212,305.62, 292,979.49 and 115,512.42 is: 159,405.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,305.62 : 292,979.49 = 115,512.42 : x
  2. Step 2: Convert to fraction form
    212,305.62/292,979.49 = 115,512.42/x
  3. Step 3: Cross multiply
    212,305.62x = 292,979.49 × 115,512.42
  4. Step 4: Simplify right side
    212,305.62x = 33,842,769,900.27
  5. Step 5: Solve for x
    x = 33,842,769,900.27/212,305.62
  6. Step 6: Final answer
    x = 159,405.91

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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.