Home / 278,582.31-384,467.38-157,744.89

Finding the Fourth Proportional to 278,582.31, 384,467.38 and 157,744.89

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Solution

The fourth proportional to 278,582.31, 384,467.38 and 157,744.89 is: 217,701.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,582.31 : 384,467.38 = 157,744.89 : x
  2. Step 2: Convert to fraction form
    278,582.31/384,467.38 = 157,744.89/x
  3. Step 3: Cross multiply
    278,582.31x = 384,467.38 × 157,744.89
  4. Step 4: Simplify right side
    278,582.31x = 60,647,764,172.33
  5. Step 5: Solve for x
    x = 60,647,764,172.33/278,582.31
  6. Step 6: Final answer
    x = 217,701.42

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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.