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Finding the Fourth Proportional to 294,240.80, 441,015.60 and 136,135.28

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Solution

The fourth proportional to 294,240.80, 441,015.60 and 136,135.28 is: 204,043.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,240.80 : 441,015.60 = 136,135.28 : x
  2. Step 2: Convert to fraction form
    294,240.80/441,015.60 = 136,135.28/x
  3. Step 3: Cross multiply
    294,240.80x = 441,015.60 × 136,135.28
  4. Step 4: Simplify right side
    294,240.80x = 60,037,782,190.37
  5. Step 5: Solve for x
    x = 60,037,782,190.37/294,240.80
  6. Step 6: Final answer
    x = 204,043.02

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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.