Home / 308,817.22-426,234.18-187,998.34

Finding the Fourth Proportional to 308,817.22, 426,234.18 and 187,998.34

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Solution

The fourth proportional to 308,817.22, 426,234.18 and 187,998.34 is: 259,478.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,817.22 : 426,234.18 = 187,998.34 : x
  2. Step 2: Convert to fraction form
    308,817.22/426,234.18 = 187,998.34/x
  3. Step 3: Cross multiply
    308,817.22x = 426,234.18 × 187,998.34
  4. Step 4: Simplify right side
    308,817.22x = 80,131,318,291.26
  5. Step 5: Solve for x
    x = 80,131,318,291.26/308,817.22
  6. Step 6: Final answer
    x = 259,478.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.