Home / 198,233.80-297,350.70-139,136.20

Finding the Fourth Proportional to 198,233.80, 297,350.70 and 139,136.20

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Solution

The fourth proportional to 198,233.80, 297,350.70 and 139,136.20 is: 208,704.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,233.80 : 297,350.70 = 139,136.20 : x
  2. Step 2: Convert to fraction form
    198,233.80/297,350.70 = 139,136.20/x
  3. Step 3: Cross multiply
    198,233.80x = 297,350.70 × 139,136.20
  4. Step 4: Simplify right side
    198,233.80x = 41,372,246,465.34
  5. Step 5: Solve for x
    x = 41,372,246,465.34/198,233.80
  6. Step 6: Final answer
    x = 208,704.30

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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.