Home / 343,721.46-514,972.17-143,601.42

Finding the Fourth Proportional to 343,721.46, 514,972.17 and 143,601.42

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Solution

The fourth proportional to 343,721.46, 514,972.17 and 143,601.42 is: 215,147.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,721.46 : 514,972.17 = 143,601.42 : x
  2. Step 2: Convert to fraction form
    343,721.46/514,972.17 = 143,601.42/x
  3. Step 3: Cross multiply
    343,721.46x = 514,972.17 × 143,601.42
  4. Step 4: Simplify right side
    343,721.46x = 73,950,734,872.48
  5. Step 5: Solve for x
    x = 73,950,734,872.48/343,721.46
  6. Step 6: Final answer
    x = 215,147.27

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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.