Home / 290,222.48-400,493.56-161,169.15

Finding the Fourth Proportional to 290,222.48, 400,493.56 and 161,169.15

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Solution

The fourth proportional to 290,222.48, 400,493.56 and 161,169.15 is: 222,405.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,222.48 : 400,493.56 = 161,169.15 : x
  2. Step 2: Convert to fraction form
    290,222.48/400,493.56 = 161,169.15/x
  3. Step 3: Cross multiply
    290,222.48x = 400,493.56 × 161,169.15
  4. Step 4: Simplify right side
    290,222.48x = 64,547,206,645.67
  5. Step 5: Solve for x
    x = 64,547,206,645.67/290,222.48
  6. Step 6: Final answer
    x = 222,405.95

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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.