Home / 268,198.86-402,298.26-68,519.64

Finding the Fourth Proportional to 268,198.86, 402,298.26 and 68,519.64

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Solution

The fourth proportional to 268,198.86, 402,298.26 and 68,519.64 is: 102,779.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,198.86 : 402,298.26 = 68,519.64 : x
  2. Step 2: Convert to fraction form
    268,198.86/402,298.26 = 68,519.64/x
  3. Step 3: Cross multiply
    268,198.86x = 402,298.26 × 68,519.64
  4. Step 4: Simplify right side
    268,198.86x = 27,565,331,947.83
  5. Step 5: Solve for x
    x = 27,565,331,947.83/268,198.86
  6. Step 6: Final answer
    x = 102,779.45

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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.