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Finding the Fourth Proportional to 240,420.60, 331,766.64 and 131,503.32

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Solution

The fourth proportional to 240,420.60, 331,766.64 and 131,503.32 is: 181,467.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,420.60 : 331,766.64 = 131,503.32 : x
  2. Step 2: Convert to fraction form
    240,420.60/331,766.64 = 131,503.32/x
  3. Step 3: Cross multiply
    240,420.60x = 331,766.64 × 131,503.32
  4. Step 4: Simplify right side
    240,420.60x = 43,628,414,625.24
  5. Step 5: Solve for x
    x = 43,628,414,625.24/240,420.60
  6. Step 6: Final answer
    x = 181,467.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.