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Finding the Fourth Proportional to 436,557.80, 655,176.09 and 199,913.87

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Solution

The fourth proportional to 436,557.80, 655,176.09 and 199,913.87 is: 300,026.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,557.80 : 655,176.09 = 199,913.87 : x
  2. Step 2: Convert to fraction form
    436,557.80/655,176.09 = 199,913.87/x
  3. Step 3: Cross multiply
    436,557.80x = 655,176.09 × 199,913.87
  4. Step 4: Simplify right side
    436,557.80x = 130,978,790,070.99
  5. Step 5: Solve for x
    x = 130,978,790,070.99/436,557.80
  6. Step 6: Final answer
    x = 300,026.23

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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.