Home / 207,943.20-287,906.40-197,445.60

Finding the Fourth Proportional to 207,943.20, 287,906.40 and 197,445.60

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Solution

The fourth proportional to 207,943.20, 287,906.40 and 197,445.60 is: 273,372.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,943.20 : 287,906.40 = 197,445.60 : x
  2. Step 2: Convert to fraction form
    207,943.20/287,906.40 = 197,445.60/x
  3. Step 3: Cross multiply
    207,943.20x = 287,906.40 × 197,445.60
  4. Step 4: Simplify right side
    207,943.20x = 56,845,851,891.84
  5. Step 5: Solve for x
    x = 56,845,851,891.84/207,943.20
  6. Step 6: Final answer
    x = 273,372.02

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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.