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Finding the Fourth Proportional to 262,894.20, 394,341.30 and 188,244.60

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Solution

The fourth proportional to 262,894.20, 394,341.30 and 188,244.60 is: 282,366.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,894.20 : 394,341.30 = 188,244.60 : x
  2. Step 2: Convert to fraction form
    262,894.20/394,341.30 = 188,244.60/x
  3. Step 3: Cross multiply
    262,894.20x = 394,341.30 × 188,244.60
  4. Step 4: Simplify right side
    262,894.20x = 74,232,620,281.98
  5. Step 5: Solve for x
    x = 74,232,620,281.98/262,894.20
  6. Step 6: Final answer
    x = 282,366.90

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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.