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Finding the Fourth Proportional to 354,191.54, 488,801.61 and 199,191.60

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Solution

The fourth proportional to 354,191.54, 488,801.61 and 199,191.60 is: 274,894.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,191.54 : 488,801.61 = 199,191.60 : x
  2. Step 2: Convert to fraction form
    354,191.54/488,801.61 = 199,191.60/x
  3. Step 3: Cross multiply
    354,191.54x = 488,801.61 × 199,191.60
  4. Step 4: Simplify right side
    354,191.54x = 97,365,174,778.48
  5. Step 5: Solve for x
    x = 97,365,174,778.48/354,191.54
  6. Step 6: Final answer
    x = 274,894.13

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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.