Home / 209,578.23-288,667.02-161,087.43

Finding the Fourth Proportional to 209,578.23, 288,667.02 and 161,087.43

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Solution

The fourth proportional to 209,578.23, 288,667.02 and 161,087.43 is: 221,877.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,578.23 : 288,667.02 = 161,087.43 : x
  2. Step 2: Convert to fraction form
    209,578.23/288,667.02 = 161,087.43/x
  3. Step 3: Cross multiply
    209,578.23x = 288,667.02 × 161,087.43
  4. Step 4: Simplify right side
    209,578.23x = 46,500,628,377.56
  5. Step 5: Solve for x
    x = 46,500,628,377.56/209,578.23
  6. Step 6: Final answer
    x = 221,877.19

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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.