Home / 268,122.26-401,570.80-127,979.30

Finding the Fourth Proportional to 268,122.26, 401,570.80 and 127,979.30

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Solution

The fourth proportional to 268,122.26, 401,570.80 and 127,979.30 is: 191,676.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,122.26 : 401,570.80 = 127,979.30 : x
  2. Step 2: Convert to fraction form
    268,122.26/401,570.80 = 127,979.30/x
  3. Step 3: Cross multiply
    268,122.26x = 401,570.80 × 127,979.30
  4. Step 4: Simplify right side
    268,122.26x = 51,392,750,568.42
  5. Step 5: Solve for x
    x = 51,392,750,568.42/268,122.26
  6. Step 6: Final answer
    x = 191,676.55

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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.