Home / 268,521.32-402,782.50-68,842.42

Finding the Fourth Proportional to 268,521.32, 402,782.50 and 68,842.42

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Solution

The fourth proportional to 268,521.32, 402,782.50 and 68,842.42 is: 103,263.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,521.32 : 402,782.50 = 68,842.42 : x
  2. Step 2: Convert to fraction form
    268,521.32/402,782.50 = 68,842.42/x
  3. Step 3: Cross multiply
    268,521.32x = 402,782.50 × 68,842.42
  4. Step 4: Simplify right side
    268,521.32x = 27,728,521,112.75
  5. Step 5: Solve for x
    x = 27,728,521,112.75/268,521.32
  6. Step 6: Final answer
    x = 103,263.76

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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.