Home / 278,514.68-384,351.42-157,679.29

Finding the Fourth Proportional to 278,514.68, 384,351.42 and 157,679.29

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Solution

The fourth proportional to 278,514.68, 384,351.42 and 157,679.29 is: 217,598.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,514.68 : 384,351.42 = 157,679.29 : x
  2. Step 2: Convert to fraction form
    278,514.68/384,351.42 = 157,679.29/x
  3. Step 3: Cross multiply
    278,514.68x = 384,351.42 × 157,679.29
  4. Step 4: Simplify right side
    278,514.68x = 60,604,259,016.09
  5. Step 5: Solve for x
    x = 60,604,259,016.09/278,514.68
  6. Step 6: Final answer
    x = 217,598.08

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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.