Home / 205,966.40-308,949.60-161,729.60

Finding the Fourth Proportional to 205,966.40, 308,949.60 and 161,729.60

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Solution

The fourth proportional to 205,966.40, 308,949.60 and 161,729.60 is: 242,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,966.40 : 308,949.60 = 161,729.60 : x
  2. Step 2: Convert to fraction form
    205,966.40/308,949.60 = 161,729.60/x
  3. Step 3: Cross multiply
    205,966.40x = 308,949.60 × 161,729.60
  4. Step 4: Simplify right side
    205,966.40x = 49,966,295,228.16
  5. Step 5: Solve for x
    x = 49,966,295,228.16/205,966.40
  6. Step 6: Final answer
    x = 242,594.40

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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.