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Finding the Fourth Proportional to 202,279.60, 303,419.40 and 199,655.20

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Solution

The fourth proportional to 202,279.60, 303,419.40 and 199,655.20 is: 299,482.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,279.60 : 303,419.40 = 199,655.20 : x
  2. Step 2: Convert to fraction form
    202,279.60/303,419.40 = 199,655.20/x
  3. Step 3: Cross multiply
    202,279.60x = 303,419.40 × 199,655.20
  4. Step 4: Simplify right side
    202,279.60x = 60,579,260,990.88
  5. Step 5: Solve for x
    x = 60,579,260,990.88/202,279.60
  6. Step 6: Final answer
    x = 299,482.80

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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.