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Finding the Fourth Proportional to 202,979.60, 304,469.40 and 98,003.60

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Solution

The fourth proportional to 202,979.60, 304,469.40 and 98,003.60 is: 147,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,979.60 : 304,469.40 = 98,003.60 : x
  2. Step 2: Convert to fraction form
    202,979.60/304,469.40 = 98,003.60/x
  3. Step 3: Cross multiply
    202,979.60x = 304,469.40 × 98,003.60
  4. Step 4: Simplify right side
    202,979.60x = 29,839,097,289.84
  5. Step 5: Solve for x
    x = 29,839,097,289.84/202,979.60
  6. Step 6: Final answer
    x = 147,005.40

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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.