Home / 208,853.60-313,280.40-68,612.22

Finding the Fourth Proportional to 208,853.60, 313,280.40 and 68,612.22

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Solution

The fourth proportional to 208,853.60, 313,280.40 and 68,612.22 is: 102,918.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,853.60 : 313,280.40 = 68,612.22 : x
  2. Step 2: Convert to fraction form
    208,853.60/313,280.40 = 68,612.22/x
  3. Step 3: Cross multiply
    208,853.60x = 313,280.40 × 68,612.22
  4. Step 4: Simplify right side
    208,853.60x = 21,494,863,726.49
  5. Step 5: Solve for x
    x = 21,494,863,726.49/208,853.60
  6. Step 6: Final answer
    x = 102,918.33

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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.