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Finding the Fourth Proportional to 303,066.68, 418,060.77 and 189,692.60

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Solution

The fourth proportional to 303,066.68, 418,060.77 and 189,692.60 is: 261,668.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,066.68 : 418,060.77 = 189,692.60 : x
  2. Step 2: Convert to fraction form
    303,066.68/418,060.77 = 189,692.60/x
  3. Step 3: Cross multiply
    303,066.68x = 418,060.77 × 189,692.60
  4. Step 4: Simplify right side
    303,066.68x = 79,303,034,419.30
  5. Step 5: Solve for x
    x = 79,303,034,419.30/303,066.68
  6. Step 6: Final answer
    x = 261,668.60

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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.