Home / 356,509.20-491,974.80-195,360.72

Finding the Fourth Proportional to 356,509.20, 491,974.80 and 195,360.72

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Solution

The fourth proportional to 356,509.20, 491,974.80 and 195,360.72 is: 269,593.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,509.20 : 491,974.80 = 195,360.72 : x
  2. Step 2: Convert to fraction form
    356,509.20/491,974.80 = 195,360.72/x
  3. Step 3: Cross multiply
    356,509.20x = 491,974.80 × 195,360.72
  4. Step 4: Simplify right side
    356,509.20x = 96,112,551,149.86
  5. Step 5: Solve for x
    x = 96,112,551,149.86/356,509.20
  6. Step 6: Final answer
    x = 269,593.47

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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.