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Finding the Fourth Proportional to 200,270.21, 300,404.55 and 81,941.52

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Solution

The fourth proportional to 200,270.21, 300,404.55 and 81,941.52 is: 122,911.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,270.21 : 300,404.55 = 81,941.52 : x
  2. Step 2: Convert to fraction form
    200,270.21/300,404.55 = 81,941.52/x
  3. Step 3: Cross multiply
    200,270.21x = 300,404.55 × 81,941.52
  4. Step 4: Simplify right side
    200,270.21x = 24,615,605,441.92
  5. Step 5: Solve for x
    x = 24,615,605,441.92/200,270.21
  6. Step 6: Final answer
    x = 122,911.97

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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.