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Finding the Fourth Proportional to 200,001.66, 300,018.45 and 66,882.60

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Solution

The fourth proportional to 200,001.66, 300,018.45 and 66,882.60 is: 100,329.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,001.66 : 300,018.45 = 66,882.60 : x
  2. Step 2: Convert to fraction form
    200,001.66/300,018.45 = 66,882.60/x
  3. Step 3: Cross multiply
    200,001.66x = 300,018.45 × 66,882.60
  4. Step 4: Simplify right side
    200,001.66x = 20,066,013,983.97
  5. Step 5: Solve for x
    x = 20,066,013,983.97/200,001.66
  6. Step 6: Final answer
    x = 100,329.24

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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.