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Finding the Fourth Proportional to 404,313.10, 606,469.65 and 138,033.70

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Solution

The fourth proportional to 404,313.10, 606,469.65 and 138,033.70 is: 207,050.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,313.10 : 606,469.65 = 138,033.70 : x
  2. Step 2: Convert to fraction form
    404,313.10/606,469.65 = 138,033.70/x
  3. Step 3: Cross multiply
    404,313.10x = 606,469.65 × 138,033.70
  4. Step 4: Simplify right side
    404,313.10x = 83,713,249,727.21
  5. Step 5: Solve for x
    x = 83,713,249,727.21/404,313.10
  6. Step 6: Final answer
    x = 207,050.55

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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.