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Finding the Fourth Proportional to 404,031.87, 606,226.34 and 211,860.42

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Solution

The fourth proportional to 404,031.87, 606,226.34 and 211,860.42 is: 317,884.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,031.87 : 606,226.34 = 211,860.42 : x
  2. Step 2: Convert to fraction form
    404,031.87/606,226.34 = 211,860.42/x
  3. Step 3: Cross multiply
    404,031.87x = 606,226.34 × 211,860.42
  4. Step 4: Simplify right side
    404,031.87x = 128,435,367,007.46
  5. Step 5: Solve for x
    x = 128,435,367,007.46/404,031.87
  6. Step 6: Final answer
    x = 317,884.25

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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.