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Finding the Fourth Proportional to 247,418.40, 371,127.60 and 107,450.40

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Solution

The fourth proportional to 247,418.40, 371,127.60 and 107,450.40 is: 161,175.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,418.40 : 371,127.60 = 107,450.40 : x
  2. Step 2: Convert to fraction form
    247,418.40/371,127.60 = 107,450.40/x
  3. Step 3: Cross multiply
    247,418.40x = 371,127.60 × 107,450.40
  4. Step 4: Simplify right side
    247,418.40x = 39,877,809,071.04
  5. Step 5: Solve for x
    x = 39,877,809,071.04/247,418.40
  6. Step 6: Final answer
    x = 161,175.60

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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.