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Finding the Fourth Proportional to 303,143.14, 454,310.74 and 143,261.54

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Solution

The fourth proportional to 303,143.14, 454,310.74 and 143,261.54 is: 214,701.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,143.14 : 454,310.74 = 143,261.54 : x
  2. Step 2: Convert to fraction form
    303,143.14/454,310.74 = 143,261.54/x
  3. Step 3: Cross multiply
    303,143.14x = 454,310.74 × 143,261.54
  4. Step 4: Simplify right side
    303,143.14x = 65,085,256,250.94
  5. Step 5: Solve for x
    x = 65,085,256,250.94/303,143.14
  6. Step 6: Final answer
    x = 214,701.40

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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.