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Finding the Fourth Proportional to 353,892.21, 488,385.01 and 200,944.60

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Solution

The fourth proportional to 353,892.21, 488,385.01 and 200,944.60 is: 277,311.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,892.21 : 488,385.01 = 200,944.60 : x
  2. Step 2: Convert to fraction form
    353,892.21/488,385.01 = 200,944.60/x
  3. Step 3: Cross multiply
    353,892.21x = 488,385.01 × 200,944.60
  4. Step 4: Simplify right side
    353,892.21x = 98,138,329,510.66
  5. Step 5: Solve for x
    x = 98,138,329,510.66/353,892.21
  6. Step 6: Final answer
    x = 277,311.36

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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.