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Finding the Fourth Proportional to 354,153.88, 488,676.48 and 199,074.60

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Solution

The fourth proportional to 354,153.88, 488,676.48 and 199,074.60 is: 274,691.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,153.88 : 488,676.48 = 199,074.60 : x
  2. Step 2: Convert to fraction form
    354,153.88/488,676.48 = 199,074.60/x
  3. Step 3: Cross multiply
    354,153.88x = 488,676.48 × 199,074.60
  4. Step 4: Simplify right side
    354,153.88x = 97,283,074,785.41
  5. Step 5: Solve for x
    x = 97,283,074,785.41/354,153.88
  6. Step 6: Final answer
    x = 274,691.54

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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.