Home / 278,268.03-417,467.57-221,556.42

Finding the Fourth Proportional to 278,268.03, 417,467.57 and 221,556.42

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Solution

The fourth proportional to 278,268.03, 417,467.57 and 221,556.42 is: 332,386.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,268.03 : 417,467.57 = 221,556.42 : x
  2. Step 2: Convert to fraction form
    278,268.03/417,467.57 = 221,556.42/x
  3. Step 3: Cross multiply
    278,268.03x = 417,467.57 × 221,556.42
  4. Step 4: Simplify right side
    278,268.03x = 92,492,619,167.52
  5. Step 5: Solve for x
    x = 92,492,619,167.52/278,268.03
  6. Step 6: Final answer
    x = 332,386.80

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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.