Home / 268,481.62-402,722.27-78,943.55

Finding the Fourth Proportional to 268,481.62, 402,722.27 and 78,943.55

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Solution

The fourth proportional to 268,481.62, 402,722.27 and 78,943.55 is: 118,415.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,481.62 : 402,722.27 = 78,943.55 : x
  2. Step 2: Convert to fraction form
    268,481.62/402,722.27 = 78,943.55/x
  3. Step 3: Cross multiply
    268,481.62x = 402,722.27 × 78,943.55
  4. Step 4: Simplify right side
    268,481.62x = 31,792,326,565.98
  5. Step 5: Solve for x
    x = 31,792,326,565.98/268,481.62
  6. Step 6: Final answer
    x = 118,415.28

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1.5x scale

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.