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Finding the Fourth Proportional to 354,169.19, 488,770.79 and 199,169.30

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Solution

The fourth proportional to 354,169.19, 488,770.79 and 199,169.30 is: 274,863.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,169.19 : 488,770.79 = 199,169.30 : x
  2. Step 2: Convert to fraction form
    354,169.19/488,770.79 = 199,169.30/x
  3. Step 3: Cross multiply
    354,169.19x = 488,770.79 × 199,169.30
  4. Step 4: Simplify right side
    354,169.19x = 97,348,132,665.05
  5. Step 5: Solve for x
    x = 97,348,132,665.05/354,169.19
  6. Step 6: Final answer
    x = 274,863.36

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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.