Home / 315,965.80-435,984.03-179,982.47

Finding the Fourth Proportional to 315,965.80, 435,984.03 and 179,982.47

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Solution

The fourth proportional to 315,965.80, 435,984.03 and 179,982.47 is: 248,348.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,965.80 : 435,984.03 = 179,982.47 : x
  2. Step 2: Convert to fraction form
    315,965.80/435,984.03 = 179,982.47/x
  3. Step 3: Cross multiply
    315,965.80x = 435,984.03 × 179,982.47
  4. Step 4: Simplify right side
    315,965.80x = 78,469,482,103.71
  5. Step 5: Solve for x
    x = 78,469,482,103.71/315,965.80
  6. Step 6: Final answer
    x = 248,348.02

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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.