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Finding the Fourth Proportional to 408,002.22, 612,107.16 and 239,664.90

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Solution

The fourth proportional to 408,002.22, 612,107.16 and 239,664.90 is: 359,558.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,002.22 : 612,107.16 = 239,664.90 : x
  2. Step 2: Convert to fraction form
    408,002.22/612,107.16 = 239,664.90/x
  3. Step 3: Cross multiply
    408,002.22x = 612,107.16 × 239,664.90
  4. Step 4: Simplify right side
    408,002.22x = 146,700,601,290.68
  5. Step 5: Solve for x
    x = 146,700,601,290.68/408,002.22
  6. Step 6: Final answer
    x = 359,558.34

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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.