Home / 278,834.52-384,790.31-157,975.55

Finding the Fourth Proportional to 278,834.52, 384,790.31 and 157,975.55

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Solution

The fourth proportional to 278,834.52, 384,790.31 and 157,975.55 is: 218,005.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,834.52 : 384,790.31 = 157,975.55 : x
  2. Step 2: Convert to fraction form
    278,834.52/384,790.31 = 157,975.55/x
  3. Step 3: Cross multiply
    278,834.52x = 384,790.31 × 157,975.55
  4. Step 4: Simplify right side
    278,834.52x = 60,787,458,143.09
  5. Step 5: Solve for x
    x = 60,787,458,143.09/278,834.52
  6. Step 6: Final answer
    x = 218,005.50

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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.