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Finding the Fourth Proportional to 655,021.80, 981,938.70 and 234,199.80

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Solution

The fourth proportional to 655,021.80, 981,938.70 and 234,199.80 is: 351,087.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,021.80 : 981,938.70 = 234,199.80 : x
  2. Step 2: Convert to fraction form
    655,021.80/981,938.70 = 234,199.80/x
  3. Step 3: Cross multiply
    655,021.80x = 981,938.70 × 234,199.80
  4. Step 4: Simplify right side
    655,021.80x = 229,969,847,152.26
  5. Step 5: Solve for x
    x = 229,969,847,152.26/655,021.80
  6. Step 6: Final answer
    x = 351,087.32

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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.