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Finding the Fourth Proportional to 208,863.88, 313,409.25 and 88,901.26

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Solution

The fourth proportional to 208,863.88, 313,409.25 and 88,901.26 is: 133,400.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,863.88 : 313,409.25 = 88,901.26 : x
  2. Step 2: Convert to fraction form
    208,863.88/313,409.25 = 88,901.26/x
  3. Step 3: Cross multiply
    208,863.88x = 313,409.25 × 88,901.26
  4. Step 4: Simplify right side
    208,863.88x = 27,862,477,220.66
  5. Step 5: Solve for x
    x = 27,862,477,220.66/208,863.88
  6. Step 6: Final answer
    x = 133,400.17

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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.