Home / 199,204.20-298,368.90-139,717.80

Finding the Fourth Proportional to 199,204.20, 298,368.90 and 139,717.80

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Solution

The fourth proportional to 199,204.20, 298,368.90 and 139,717.80 is: 209,269.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,204.20 : 298,368.90 = 139,717.80 : x
  2. Step 2: Convert to fraction form
    199,204.20/298,368.90 = 139,717.80/x
  3. Step 3: Cross multiply
    199,204.20x = 298,368.90 × 139,717.80
  4. Step 4: Simplify right side
    199,204.20x = 41,687,446,296.42
  5. Step 5: Solve for x
    x = 41,687,446,296.42/199,204.20
  6. Step 6: Final answer
    x = 209,269.92

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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.