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Finding the Fourth Proportional to 202,211.60, 303,317.40 and 199,587.20

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Solution

The fourth proportional to 202,211.60, 303,317.40 and 199,587.20 is: 299,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,211.60 : 303,317.40 = 199,587.20 : x
  2. Step 2: Convert to fraction form
    202,211.60/303,317.40 = 199,587.20/x
  3. Step 3: Cross multiply
    202,211.60x = 303,317.40 × 199,587.20
  4. Step 4: Simplify right side
    202,211.60x = 60,538,270,577.28
  5. Step 5: Solve for x
    x = 60,538,270,577.28/202,211.60
  6. Step 6: Final answer
    x = 299,380.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.