Home / 278,851.20-384,813.34-157,992.24

Finding the Fourth Proportional to 278,851.20, 384,813.34 and 157,992.24

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Solution

The fourth proportional to 278,851.20, 384,813.34 and 157,992.24 is: 218,028.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,851.20 : 384,813.34 = 157,992.24 : x
  2. Step 2: Convert to fraction form
    278,851.20/384,813.34 = 157,992.24/x
  3. Step 3: Cross multiply
    278,851.20x = 384,813.34 × 157,992.24
  4. Step 4: Simplify right side
    278,851.20x = 60,797,521,568.48
  5. Step 5: Solve for x
    x = 60,797,521,568.48/278,851.20
  6. Step 6: Final answer
    x = 218,028.55

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1.5x scale

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.