Home / 326,738.78-489,053.55-168,749.90

Finding the Fourth Proportional to 326,738.78, 489,053.55 and 168,749.90

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Solution

The fourth proportional to 326,738.78, 489,053.55 and 168,749.90 is: 252,580.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,738.78 : 489,053.55 = 168,749.90 : x
  2. Step 2: Convert to fraction form
    326,738.78/489,053.55 = 168,749.90/x
  3. Step 3: Cross multiply
    326,738.78x = 489,053.55 × 168,749.90
  4. Step 4: Simplify right side
    326,738.78x = 82,527,737,657.15
  5. Step 5: Solve for x
    x = 82,527,737,657.15/326,738.78
  6. Step 6: Final answer
    x = 252,580.17

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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.