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Finding the Fourth Proportional to 404,022.36, 606,212.05 and 211,850.90

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Solution

The fourth proportional to 404,022.36, 606,212.05 and 211,850.90 is: 317,869.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,022.36 : 606,212.05 = 211,850.90 : x
  2. Step 2: Convert to fraction form
    404,022.36/606,212.05 = 211,850.90/x
  3. Step 3: Cross multiply
    404,022.36x = 606,212.05 × 211,850.90
  4. Step 4: Simplify right side
    404,022.36x = 128,426,564,293.03
  5. Step 5: Solve for x
    x = 128,426,564,293.03/404,022.36
  6. Step 6: Final answer
    x = 317,869.94

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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.