Home / 205,272.86-307,480.08-165,074.36

Finding the Fourth Proportional to 205,272.86, 307,480.08 and 165,074.36

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Solution

The fourth proportional to 205,272.86, 307,480.08 and 165,074.36 is: 247,266.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,272.86 : 307,480.08 = 165,074.36 : x
  2. Step 2: Convert to fraction form
    205,272.86/307,480.08 = 165,074.36/x
  3. Step 3: Cross multiply
    205,272.86x = 307,480.08 × 165,074.36
  4. Step 4: Simplify right side
    205,272.86x = 50,757,077,418.75
  5. Step 5: Solve for x
    x = 50,757,077,418.75/205,272.86
  6. Step 6: Final answer
    x = 247,266.38

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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.