Home / 272,289.57-408,131.69-205,513.17

Finding the Fourth Proportional to 272,289.57, 408,131.69 and 205,513.17

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Solution

The fourth proportional to 272,289.57, 408,131.69 and 205,513.17 is: 308,041.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,289.57 : 408,131.69 = 205,513.17 : x
  2. Step 2: Convert to fraction form
    272,289.57/408,131.69 = 205,513.17/x
  3. Step 3: Cross multiply
    272,289.57x = 408,131.69 × 205,513.17
  4. Step 4: Simplify right side
    272,289.57x = 83,876,436,361.79
  5. Step 5: Solve for x
    x = 83,876,436,361.79/272,289.57
  6. Step 6: Final answer
    x = 308,041.31

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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.