Home / 326,044.50-489,110.49-139,099.74

Finding the Fourth Proportional to 326,044.50, 489,110.49 and 139,099.74

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Solution

The fourth proportional to 326,044.50, 489,110.49 and 139,099.74 is: 208,668.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,044.50 : 489,110.49 = 139,099.74 : x
  2. Step 2: Convert to fraction form
    326,044.50/489,110.49 = 139,099.74/x
  3. Step 3: Cross multiply
    326,044.50x = 489,110.49 × 139,099.74
  4. Step 4: Simplify right side
    326,044.50x = 68,035,141,990.27
  5. Step 5: Solve for x
    x = 68,035,141,990.27/326,044.50
  6. Step 6: Final answer
    x = 208,668.27

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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.