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Finding the Fourth Proportional to 321,060.24, 481,787.10 and 143,717.22

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Solution

The fourth proportional to 321,060.24, 481,787.10 and 143,717.22 is: 215,663.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,060.24 : 481,787.10 = 143,717.22 : x
  2. Step 2: Convert to fraction form
    321,060.24/481,787.10 = 143,717.22/x
  3. Step 3: Cross multiply
    321,060.24x = 481,787.10 × 143,717.22
  4. Step 4: Simplify right side
    321,060.24x = 69,241,102,643.86
  5. Step 5: Solve for x
    x = 69,241,102,643.86/321,060.24
  6. Step 6: Final answer
    x = 215,663.90

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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.