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Finding the Fourth Proportional to 436,881.54, 655,409.82 and 137,437.50

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Solution

The fourth proportional to 436,881.54, 655,409.82 and 137,437.50 is: 206,183.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,881.54 : 655,409.82 = 137,437.50 : x
  2. Step 2: Convert to fraction form
    436,881.54/655,409.82 = 137,437.50/x
  3. Step 3: Cross multiply
    436,881.54x = 655,409.82 × 137,437.50
  4. Step 4: Simplify right side
    436,881.54x = 90,077,887,136.25
  5. Step 5: Solve for x
    x = 90,077,887,136.25/436,881.54
  6. Step 6: Final answer
    x = 206,183.78

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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.