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Finding the Fourth Proportional to 436,857.17, 655,285.19 and 137,363.94

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Solution

The fourth proportional to 436,857.17, 655,285.19 and 137,363.94 is: 206,045.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,857.17 : 655,285.19 = 137,363.94 : x
  2. Step 2: Convert to fraction form
    436,857.17/655,285.19 = 137,363.94/x
  3. Step 3: Cross multiply
    436,857.17x = 655,285.19 × 137,363.94
  4. Step 4: Simplify right side
    436,857.17x = 90,012,554,835.23
  5. Step 5: Solve for x
    x = 90,012,554,835.23/436,857.17
  6. Step 6: Final answer
    x = 206,045.73

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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.