Home / 205,848.20-308,772.30-193,406.60

Finding the Fourth Proportional to 205,848.20, 308,772.30 and 193,406.60

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Solution

The fourth proportional to 205,848.20, 308,772.30 and 193,406.60 is: 290,109.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,848.20 : 308,772.30 = 193,406.60 : x
  2. Step 2: Convert to fraction form
    205,848.20/308,772.30 = 193,406.60/x
  3. Step 3: Cross multiply
    205,848.20x = 308,772.30 × 193,406.60
  4. Step 4: Simplify right side
    205,848.20x = 59,718,600,717.18
  5. Step 5: Solve for x
    x = 59,718,600,717.18/205,848.20
  6. Step 6: Final answer
    x = 290,109.90

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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.