Home / 205,670.50-306,258.47-198,103.72

Finding the Fourth Proportional to 205,670.50, 306,258.47 and 198,103.72

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Solution

The fourth proportional to 205,670.50, 306,258.47 and 198,103.72 is: 294,990.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,670.50 : 306,258.47 = 198,103.72 : x
  2. Step 2: Convert to fraction form
    205,670.50/306,258.47 = 198,103.72/x
  3. Step 3: Cross multiply
    205,670.50x = 306,258.47 × 198,103.72
  4. Step 4: Simplify right side
    205,670.50x = 60,670,942,188.51
  5. Step 5: Solve for x
    x = 60,670,942,188.51/205,670.50
  6. Step 6: Final answer
    x = 294,990.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.