Home / 205,447.66-307,645.32-142,180.18

Finding the Fourth Proportional to 205,447.66, 307,645.32 and 142,180.18

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Solution

The fourth proportional to 205,447.66, 307,645.32 and 142,180.18 is: 212,906.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,447.66 : 307,645.32 = 142,180.18 : x
  2. Step 2: Convert to fraction form
    205,447.66/307,645.32 = 142,180.18/x
  3. Step 3: Cross multiply
    205,447.66x = 307,645.32 × 142,180.18
  4. Step 4: Simplify right side
    205,447.66x = 43,741,066,973.76
  5. Step 5: Solve for x
    x = 43,741,066,973.76/205,447.66
  6. Step 6: Final answer
    x = 212,906.13

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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.