Home / 320,675.14-442,668-199,876.60

Finding the Fourth Proportional to 320,675.14, 442,668 and 199,876.60

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Solution

The fourth proportional to 320,675.14, 442,668 and 199,876.60 is: 275,914.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,675.14 : 442,668 = 199,876.60 : x
  2. Step 2: Convert to fraction form
    320,675.14/442,668 = 199,876.60/x
  3. Step 3: Cross multiply
    320,675.14x = 442,668 × 199,876.60
  4. Step 4: Simplify right side
    320,675.14x = 88,478,974,768.80
  5. Step 5: Solve for x
    x = 88,478,974,768.80/320,675.14
  6. Step 6: Final answer
    x = 275,914.67

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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.