Home / 209,317.91-288,940.87-148,382.59

Finding the Fourth Proportional to 209,317.91, 288,940.87 and 148,382.59

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Solution

The fourth proportional to 209,317.91, 288,940.87 and 148,382.59 is: 204,826.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,317.91 : 288,940.87 = 148,382.59 : x
  2. Step 2: Convert to fraction form
    209,317.91/288,940.87 = 148,382.59/x
  3. Step 3: Cross multiply
    209,317.91x = 288,940.87 × 148,382.59
  4. Step 4: Simplify right side
    209,317.91x = 42,873,794,647.45
  5. Step 5: Solve for x
    x = 42,873,794,647.45/209,317.91
  6. Step 6: Final answer
    x = 204,826.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.