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Finding the Fourth Proportional to 200,003.29, 300,005.20 and 81,674.62

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Solution

The fourth proportional to 200,003.29, 300,005.20 and 81,674.62 is: 122,512.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,003.29 : 300,005.20 = 81,674.62 : x
  2. Step 2: Convert to fraction form
    200,003.29/300,005.20 = 81,674.62/x
  3. Step 3: Cross multiply
    200,003.29x = 300,005.20 × 81,674.62
  4. Step 4: Simplify right side
    200,003.29x = 24,502,810,708.02
  5. Step 5: Solve for x
    x = 24,502,810,708.02/200,003.29
  6. Step 6: Final answer
    x = 122,512.04

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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.