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Finding the Fourth Proportional to 354,285.36, 488,637.32 and 226,972.80

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Solution

The fourth proportional to 354,285.36, 488,637.32 and 226,972.80 is: 313,045.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,285.36 : 488,637.32 = 226,972.80 : x
  2. Step 2: Convert to fraction form
    354,285.36/488,637.32 = 226,972.80/x
  3. Step 3: Cross multiply
    354,285.36x = 488,637.32 × 226,972.80
  4. Step 4: Simplify right side
    354,285.36x = 110,907,380,704.90
  5. Step 5: Solve for x
    x = 110,907,380,704.90/354,285.36
  6. Step 6: Final answer
    x = 313,045.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.