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Finding the Fourth Proportional to 404,222.80, 606,334.20 and 278,251.60

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Solution

The fourth proportional to 404,222.80, 606,334.20 and 278,251.60 is: 417,377.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,222.80 : 606,334.20 = 278,251.60 : x
  2. Step 2: Convert to fraction form
    404,222.80/606,334.20 = 278,251.60/x
  3. Step 3: Cross multiply
    404,222.80x = 606,334.20 × 278,251.60
  4. Step 4: Simplify right side
    404,222.80x = 168,713,461,284.72
  5. Step 5: Solve for x
    x = 168,713,461,284.72/404,222.80
  6. Step 6: Final answer
    x = 417,377.40

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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.