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Finding the Fourth Proportional to 200,808.20, 301,212.30 and 197,697.80

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Solution

The fourth proportional to 200,808.20, 301,212.30 and 197,697.80 is: 296,546.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,808.20 : 301,212.30 = 197,697.80 : x
  2. Step 2: Convert to fraction form
    200,808.20/301,212.30 = 197,697.80/x
  3. Step 3: Cross multiply
    200,808.20x = 301,212.30 × 197,697.80
  4. Step 4: Simplify right side
    200,808.20x = 59,549,009,042.94
  5. Step 5: Solve for x
    x = 59,549,009,042.94/200,808.20
  6. Step 6: Final answer
    x = 296,546.70

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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.