Home / 278,681.22-384,584.49-157,819.23

Finding the Fourth Proportional to 278,681.22, 384,584.49 and 157,819.23

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Solution

The fourth proportional to 278,681.22, 384,584.49 and 157,819.23 is: 217,793.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,681.22 : 384,584.49 = 157,819.23 : x
  2. Step 2: Convert to fraction form
    278,681.22/384,584.49 = 157,819.23/x
  3. Step 3: Cross multiply
    278,681.22x = 384,584.49 × 157,819.23
  4. Step 4: Simplify right side
    278,681.22x = 60,694,828,081.74
  5. Step 5: Solve for x
    x = 60,694,828,081.74/278,681.22
  6. Step 6: Final answer
    x = 217,793.03

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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.