Home / 378,811.68-567,528.40-220,560.36

Finding the Fourth Proportional to 378,811.68, 567,528.40 and 220,560.36

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Solution

The fourth proportional to 378,811.68, 567,528.40 and 220,560.36 is: 330,439.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,811.68 : 567,528.40 = 220,560.36 : x
  2. Step 2: Convert to fraction form
    378,811.68/567,528.40 = 220,560.36/x
  3. Step 3: Cross multiply
    378,811.68x = 567,528.40 × 220,560.36
  4. Step 4: Simplify right side
    378,811.68x = 125,174,268,214.22
  5. Step 5: Solve for x
    x = 125,174,268,214.22/378,811.68
  6. Step 6: Final answer
    x = 330,439.30

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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.