Home / 326,272.35-489,586.85-126,600.57

Finding the Fourth Proportional to 326,272.35, 489,586.85 and 126,600.57

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Solution

The fourth proportional to 326,272.35, 489,586.85 and 126,600.57 is: 189,970.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,272.35 : 489,586.85 = 126,600.57 : x
  2. Step 2: Convert to fraction form
    326,272.35/489,586.85 = 126,600.57/x
  3. Step 3: Cross multiply
    326,272.35x = 489,586.85 × 126,600.57
  4. Step 4: Simplify right side
    326,272.35x = 61,981,973,641.50
  5. Step 5: Solve for x
    x = 61,981,973,641.50/326,272.35
  6. Step 6: Final answer
    x = 189,970.05

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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.