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Finding the Fourth Proportional to 218,539.28, 301,559.28 and 123,043.52

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Solution

The fourth proportional to 218,539.28, 301,559.28 and 123,043.52 is: 169,786.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,539.28 : 301,559.28 = 123,043.52 : x
  2. Step 2: Convert to fraction form
    218,539.28/301,559.28 = 123,043.52/x
  3. Step 3: Cross multiply
    218,539.28x = 301,559.28 × 123,043.52
  4. Step 4: Simplify right side
    218,539.28x = 37,104,915,299.87
  5. Step 5: Solve for x
    x = 37,104,915,299.87/218,539.28
  6. Step 6: Final answer
    x = 169,786.02

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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.