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Finding the Fourth Proportional to 354,149.06, 488,339.82 and 239,228.22

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Solution

The fourth proportional to 354,149.06, 488,339.82 and 239,228.22 is: 329,874.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,149.06 : 488,339.82 = 239,228.22 : x
  2. Step 2: Convert to fraction form
    354,149.06/488,339.82 = 239,228.22/x
  3. Step 3: Cross multiply
    354,149.06x = 488,339.82 × 239,228.22
  4. Step 4: Simplify right side
    354,149.06x = 116,824,665,893.72
  5. Step 5: Solve for x
    x = 116,824,665,893.72/354,149.06
  6. Step 6: Final answer
    x = 329,874.28

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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.