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Finding the Fourth Proportional to 199,663.64, 275,503.30 and 117,980.53

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Solution

The fourth proportional to 199,663.64, 275,503.30 and 117,980.53 is: 162,793.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,663.64 : 275,503.30 = 117,980.53 : x
  2. Step 2: Convert to fraction form
    199,663.64/275,503.30 = 117,980.53/x
  3. Step 3: Cross multiply
    199,663.64x = 275,503.30 × 117,980.53
  4. Step 4: Simplify right side
    199,663.64x = 32,504,023,383.33
  5. Step 5: Solve for x
    x = 32,504,023,383.33/199,663.64
  6. Step 6: Final answer
    x = 162,793.90

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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.