Home / 205,621.20-308,892.60-197,224.40

Finding the Fourth Proportional to 205,621.20, 308,892.60 and 197,224.40

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Solution

The fourth proportional to 205,621.20, 308,892.60 and 197,224.40 is: 296,278.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,621.20 : 308,892.60 = 197,224.40 : x
  2. Step 2: Convert to fraction form
    205,621.20/308,892.60 = 197,224.40/x
  3. Step 3: Cross multiply
    205,621.20x = 308,892.60 × 197,224.40
  4. Step 4: Simplify right side
    205,621.20x = 60,921,157,699.44
  5. Step 5: Solve for x
    x = 60,921,157,699.44/205,621.20
  6. Step 6: Final answer
    x = 296,278.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.