Home / 356,330.09-491,718.05-195,185.86

Finding the Fourth Proportional to 356,330.09, 491,718.05 and 195,185.86

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Solution

The fourth proportional to 356,330.09, 491,718.05 and 195,185.86 is: 269,346.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,330.09 : 491,718.05 = 195,185.86 : x
  2. Step 2: Convert to fraction form
    356,330.09/491,718.05 = 195,185.86/x
  3. Step 3: Cross multiply
    356,330.09x = 491,718.05 × 195,185.86
  4. Step 4: Simplify right side
    356,330.09x = 95,976,408,496.15
  5. Step 5: Solve for x
    x = 95,976,408,496.15/356,330.09
  6. Step 6: Final answer
    x = 269,346.91

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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.