Home / 278,962.72-384,976.96-158,104.24

Finding the Fourth Proportional to 278,962.72, 384,976.96 and 158,104.24

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Solution

The fourth proportional to 278,962.72, 384,976.96 and 158,104.24 is: 218,188.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,962.72 : 384,976.96 = 158,104.24 : x
  2. Step 2: Convert to fraction form
    278,962.72/384,976.96 = 158,104.24/x
  3. Step 3: Cross multiply
    278,962.72x = 384,976.96 × 158,104.24
  4. Step 4: Simplify right side
    278,962.72x = 60,866,489,678.31
  5. Step 5: Solve for x
    x = 60,866,489,678.31/278,962.72
  6. Step 6: Final answer
    x = 218,188.62

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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.