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Finding the Fourth Proportional to 247,078.40, 370,790.40 and 106,937.60

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Solution

The fourth proportional to 247,078.40, 370,790.40 and 106,937.60 is: 160,481.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,078.40 : 370,790.40 = 106,937.60 : x
  2. Step 2: Convert to fraction form
    247,078.40/370,790.40 = 106,937.60/x
  3. Step 3: Cross multiply
    247,078.40x = 370,790.40 × 106,937.60
  4. Step 4: Simplify right side
    247,078.40x = 39,651,435,479.04
  5. Step 5: Solve for x
    x = 39,651,435,479.04/247,078.40
  6. Step 6: Final answer
    x = 160,481.19

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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.