Home / 205,629.20-308,904.60-197,232.40

Finding the Fourth Proportional to 205,629.20, 308,904.60 and 197,232.40

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Solution

The fourth proportional to 205,629.20, 308,904.60 and 197,232.40 is: 296,290.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,629.20 : 308,904.60 = 197,232.40 : x
  2. Step 2: Convert to fraction form
    205,629.20/308,904.60 = 197,232.40/x
  3. Step 3: Cross multiply
    205,629.20x = 308,904.60 × 197,232.40
  4. Step 4: Simplify right side
    205,629.20x = 60,925,995,629.04
  5. Step 5: Solve for x
    x = 60,925,995,629.04/205,629.20
  6. Step 6: Final answer
    x = 296,290.58

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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.