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Finding the Fourth Proportional to 303,058.72, 454,538.94 and 143,134.48

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Solution

The fourth proportional to 303,058.72, 454,538.94 and 143,134.48 is: 214,678.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,058.72 : 454,538.94 = 143,134.48 : x
  2. Step 2: Convert to fraction form
    303,058.72/454,538.94 = 143,134.48/x
  3. Step 3: Cross multiply
    303,058.72x = 454,538.94 × 143,134.48
  4. Step 4: Simplify right side
    303,058.72x = 65,060,194,816.65
  5. Step 5: Solve for x
    x = 65,060,194,816.65/303,058.72
  6. Step 6: Final answer
    x = 214,678.51

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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.