Home / 278,162.43-383,913.30-163,441.05

Finding the Fourth Proportional to 278,162.43, 383,913.30 and 163,441.05

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Solution

The fourth proportional to 278,162.43, 383,913.30 and 163,441.05 is: 225,577.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,162.43 : 383,913.30 = 163,441.05 : x
  2. Step 2: Convert to fraction form
    278,162.43/383,913.30 = 163,441.05/x
  3. Step 3: Cross multiply
    278,162.43x = 383,913.30 × 163,441.05
  4. Step 4: Simplify right side
    278,162.43x = 62,747,192,860.97
  5. Step 5: Solve for x
    x = 62,747,192,860.97/278,162.43
  6. Step 6: Final answer
    x = 225,577.53

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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.