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Finding the Fourth Proportional to 252,289.80, 378,496.98 and 74,796.81

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Solution

The fourth proportional to 252,289.80, 378,496.98 and 74,796.81 is: 112,213.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,289.80 : 378,496.98 = 74,796.81 : x
  2. Step 2: Convert to fraction form
    252,289.80/378,496.98 = 74,796.81/x
  3. Step 3: Cross multiply
    252,289.80x = 378,496.98 × 74,796.81
  4. Step 4: Simplify right side
    252,289.80x = 28,310,366,698.63
  5. Step 5: Solve for x
    x = 28,310,366,698.63/252,289.80
  6. Step 6: Final answer
    x = 112,213.68

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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.