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Finding the Fourth Proportional to 303,103.43, 454,665.87 and 75,400.23

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Solution

The fourth proportional to 303,103.43, 454,665.87 and 75,400.23 is: 113,103.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,103.43 : 454,665.87 = 75,400.23 : x
  2. Step 2: Convert to fraction form
    303,103.43/454,665.87 = 75,400.23/x
  3. Step 3: Cross multiply
    303,103.43x = 454,665.87 × 75,400.23
  4. Step 4: Simplify right side
    303,103.43x = 34,281,909,748.90
  5. Step 5: Solve for x
    x = 34,281,909,748.90/303,103.43
  6. Step 6: Final answer
    x = 113,103.01

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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.