Home / 272,221.07-408,414.60-139,194.77

Finding the Fourth Proportional to 272,221.07, 408,414.60 and 139,194.77

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Solution

The fourth proportional to 272,221.07, 408,414.60 and 139,194.77 is: 208,834.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,221.07 : 408,414.60 = 139,194.77 : x
  2. Step 2: Convert to fraction form
    272,221.07/408,414.60 = 139,194.77/x
  3. Step 3: Cross multiply
    272,221.07x = 408,414.60 × 139,194.77
  4. Step 4: Simplify right side
    272,221.07x = 56,849,174,269.57
  5. Step 5: Solve for x
    x = 56,849,174,269.57/272,221.07
  6. Step 6: Final answer
    x = 208,834.59

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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.