Home / 259,913.58-389,918.98-82,372.92

Finding the Fourth Proportional to 259,913.58, 389,918.98 and 82,372.92

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Solution

The fourth proportional to 259,913.58, 389,918.98 and 82,372.92 is: 123,574.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,913.58 : 389,918.98 = 82,372.92 : x
  2. Step 2: Convert to fraction form
    259,913.58/389,918.98 = 82,372.92/x
  3. Step 3: Cross multiply
    259,913.58x = 389,918.98 × 82,372.92
  4. Step 4: Simplify right side
    259,913.58x = 32,118,764,946.02
  5. Step 5: Solve for x
    x = 32,118,764,946.02/259,913.58
  6. Step 6: Final answer
    x = 123,574.79

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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.