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Finding the Fourth Proportional to 200,029.62, 300,110.13 and 81,800.40

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Solution

The fourth proportional to 200,029.62, 300,110.13 and 81,800.40 is: 122,727.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,029.62 : 300,110.13 = 81,800.40 : x
  2. Step 2: Convert to fraction form
    200,029.62/300,110.13 = 81,800.40/x
  3. Step 3: Cross multiply
    200,029.62x = 300,110.13 × 81,800.40
  4. Step 4: Simplify right side
    200,029.62x = 24,549,128,678.05
  5. Step 5: Solve for x
    x = 24,549,128,678.05/200,029.62
  6. Step 6: Final answer
    x = 122,727.47

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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.