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Finding the Fourth Proportional to 247,388.58, 371,095.56 and 69,908.40

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Solution

The fourth proportional to 247,388.58, 371,095.56 and 69,908.40 is: 104,866.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,388.58 : 371,095.56 = 69,908.40 : x
  2. Step 2: Convert to fraction form
    247,388.58/371,095.56 = 69,908.40/x
  3. Step 3: Cross multiply
    247,388.58x = 371,095.56 × 69,908.40
  4. Step 4: Simplify right side
    247,388.58x = 25,942,696,846.70
  5. Step 5: Solve for x
    x = 25,942,696,846.70/247,388.58
  6. Step 6: Final answer
    x = 104,866.19

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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.