Home / 272,221.02-408,414.60-139,194.72

Finding the Fourth Proportional to 272,221.02, 408,414.60 and 139,194.72

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Solution

The fourth proportional to 272,221.02, 408,414.60 and 139,194.72 is: 208,834.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,221.02 : 408,414.60 = 139,194.72 : x
  2. Step 2: Convert to fraction form
    272,221.02/408,414.60 = 139,194.72/x
  3. Step 3: Cross multiply
    272,221.02x = 408,414.60 × 139,194.72
  4. Step 4: Simplify right side
    272,221.02x = 56,849,155,890.91
  5. Step 5: Solve for x
    x = 56,849,155,890.91/272,221.02
  6. Step 6: Final answer
    x = 208,834.56

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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.