Home / 208,983.06-313,476-51,211.53

Finding the Fourth Proportional to 208,983.06, 313,476 and 51,211.53

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Solution

The fourth proportional to 208,983.06, 313,476 and 51,211.53 is: 76,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,983.06 : 313,476 = 51,211.53 : x
  2. Step 2: Convert to fraction form
    208,983.06/313,476 = 51,211.53/x
  3. Step 3: Cross multiply
    208,983.06x = 313,476 × 51,211.53
  4. Step 4: Simplify right side
    208,983.06x = 16,053,585,578.28
  5. Step 5: Solve for x
    x = 16,053,585,578.28/208,983.06
  6. Step 6: Final answer
    x = 76,817.64

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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.