Home / 436,790.97-655,190.10-121,272.48

Finding the Fourth Proportional to 436,790.97, 655,190.10 and 121,272.48

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Solution

The fourth proportional to 436,790.97, 655,190.10 and 121,272.48 is: 181,909.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,790.97 : 655,190.10 = 121,272.48 : x
  2. Step 2: Convert to fraction form
    436,790.97/655,190.10 = 121,272.48/x
  3. Step 3: Cross multiply
    436,790.97x = 655,190.10 × 121,272.48
  4. Step 4: Simplify right side
    436,790.97x = 79,456,528,298.45
  5. Step 5: Solve for x
    x = 79,456,528,298.45/436,790.97
  6. Step 6: Final answer
    x = 181,909.73

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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.