Home / 326,138.95-489,257.07-115,759.27

Finding the Fourth Proportional to 326,138.95, 489,257.07 and 115,759.27

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Solution

The fourth proportional to 326,138.95, 489,257.07 and 115,759.27 is: 173,656.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,138.95 : 489,257.07 = 115,759.27 : x
  2. Step 2: Convert to fraction form
    326,138.95/489,257.07 = 115,759.27/x
  3. Step 3: Cross multiply
    326,138.95x = 489,257.07 × 115,759.27
  4. Step 4: Simplify right side
    326,138.95x = 56,636,041,265.54
  5. Step 5: Solve for x
    x = 56,636,041,265.54/326,138.95
  6. Step 6: Final answer
    x = 173,656.17

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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.