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Finding the Fourth Proportional to 208,851.60, 313,277.40 and 68,610.23

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Solution

The fourth proportional to 208,851.60, 313,277.40 and 68,610.23 is: 102,915.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,851.60 : 313,277.40 = 68,610.23 : x
  2. Step 2: Convert to fraction form
    208,851.60/313,277.40 = 68,610.23/x
  3. Step 3: Cross multiply
    208,851.60x = 313,277.40 × 68,610.23
  4. Step 4: Simplify right side
    208,851.60x = 21,494,032,901.42
  5. Step 5: Solve for x
    x = 21,494,032,901.42/208,851.60
  6. Step 6: Final answer
    x = 102,915.34

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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.