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Finding the Fourth Proportional to 203,214.30, 305,018.19 and 98,107.02

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Solution

The fourth proportional to 203,214.30, 305,018.19 and 98,107.02 is: 147,255.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,214.30 : 305,018.19 = 98,107.02 : x
  2. Step 2: Convert to fraction form
    203,214.30/305,018.19 = 98,107.02/x
  3. Step 3: Cross multiply
    203,214.30x = 305,018.19 × 98,107.02
  4. Step 4: Simplify right side
    203,214.30x = 29,924,425,666.69
  5. Step 5: Solve for x
    x = 29,924,425,666.69/203,214.30
  6. Step 6: Final answer
    x = 147,255.51

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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.