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Finding the Fourth Proportional to 303,059.72, 454,540.44 and 143,135.48

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Solution

The fourth proportional to 303,059.72, 454,540.44 and 143,135.48 is: 214,680.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,059.72 : 454,540.44 = 143,135.48 : x
  2. Step 2: Convert to fraction form
    303,059.72/454,540.44 = 143,135.48/x
  3. Step 3: Cross multiply
    303,059.72x = 454,540.44 × 143,135.48
  4. Step 4: Simplify right side
    303,059.72x = 65,060,864,058.81
  5. Step 5: Solve for x
    x = 65,060,864,058.81/303,059.72
  6. Step 6: Final answer
    x = 214,680.01

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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.