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Finding the Fourth Proportional to 304,838.66, 420,672.92 and 168,872.37

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Solution

The fourth proportional to 304,838.66, 420,672.92 and 168,872.37 is: 233,041.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,838.66 : 420,672.92 = 168,872.37 : x
  2. Step 2: Convert to fraction form
    304,838.66/420,672.92 = 168,872.37/x
  3. Step 3: Cross multiply
    304,838.66x = 420,672.92 × 168,872.37
  4. Step 4: Simplify right side
    304,838.66x = 71,040,032,150.86
  5. Step 5: Solve for x
    x = 71,040,032,150.86/304,838.66
  6. Step 6: Final answer
    x = 233,041.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.