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Finding the Fourth Proportional to 201,998.90, 302,806.35 and 75,605.30

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Solution

The fourth proportional to 201,998.90, 302,806.35 and 75,605.30 is: 113,336.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,998.90 : 302,806.35 = 75,605.30 : x
  2. Step 2: Convert to fraction form
    201,998.90/302,806.35 = 75,605.30/x
  3. Step 3: Cross multiply
    201,998.90x = 302,806.35 × 75,605.30
  4. Step 4: Simplify right side
    201,998.90x = 22,893,764,933.66
  5. Step 5: Solve for x
    x = 22,893,764,933.66/201,998.90
  6. Step 6: Final answer
    x = 113,336.09

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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.