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Finding the Fourth Proportional to 200,139.12, 300,208.50 and 94,900.68

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Solution

The fourth proportional to 200,139.12, 300,208.50 and 94,900.68 is: 142,350.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,139.12 : 300,208.50 = 94,900.68 : x
  2. Step 2: Convert to fraction form
    200,139.12/300,208.50 = 94,900.68/x
  3. Step 3: Cross multiply
    200,139.12x = 300,208.50 × 94,900.68
  4. Step 4: Simplify right side
    200,139.12x = 28,489,990,791.78
  5. Step 5: Solve for x
    x = 28,489,990,791.78/200,139.12
  6. Step 6: Final answer
    x = 142,350.93

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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.