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Finding the Fourth Proportional to 200,001.29, 300,002.20 and 81,672.62

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Solution

The fourth proportional to 200,001.29, 300,002.20 and 81,672.62 is: 122,509.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,001.29 : 300,002.20 = 81,672.62 : x
  2. Step 2: Convert to fraction form
    200,001.29/300,002.20 = 81,672.62/x
  3. Step 3: Cross multiply
    200,001.29x = 300,002.20 × 81,672.62
  4. Step 4: Simplify right side
    200,001.29x = 24,501,963,975.57
  5. Step 5: Solve for x
    x = 24,501,963,975.57/200,001.29
  6. Step 6: Final answer
    x = 122,509.03

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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.