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Finding the Fourth Proportional to 354,149.89, 488,670.98 and 199,070.60

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Solution

The fourth proportional to 354,149.89, 488,670.98 and 199,070.60 is: 274,686.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,149.89 : 488,670.98 = 199,070.60 : x
  2. Step 2: Convert to fraction form
    354,149.89/488,670.98 = 199,070.60/x
  3. Step 3: Cross multiply
    354,149.89x = 488,670.98 × 199,070.60
  4. Step 4: Simplify right side
    354,149.89x = 97,280,021,752.48
  5. Step 5: Solve for x
    x = 97,280,021,752.48/354,149.89
  6. Step 6: Final answer
    x = 274,686.02

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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.