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Finding the Fourth Proportional to 436,866.93, 655,299.75 and 137,373.75

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Solution

The fourth proportional to 436,866.93, 655,299.75 and 137,373.75 is: 206,060.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,866.93 : 655,299.75 = 137,373.75 : x
  2. Step 2: Convert to fraction form
    436,866.93/655,299.75 = 137,373.75/x
  3. Step 3: Cross multiply
    436,866.93x = 655,299.75 × 137,373.75
  4. Step 4: Simplify right side
    436,866.93x = 90,020,984,031.56
  5. Step 5: Solve for x
    x = 90,020,984,031.56/436,866.93
  6. Step 6: Final answer
    x = 206,060.42

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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.