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Finding the Fourth Proportional to 304,634, 420,396.36 and 170,523.92

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Solution

The fourth proportional to 304,634, 420,396.36 and 170,523.92 is: 235,323.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,634 : 420,396.36 = 170,523.92 : x
  2. Step 2: Convert to fraction form
    304,634/420,396.36 = 170,523.92/x
  3. Step 3: Cross multiply
    304,634x = 420,396.36 × 170,523.92
  4. Step 4: Simplify right side
    304,634x = 71,687,635,260.93
  5. Step 5: Solve for x
    x = 71,687,635,260.93/304,634
  6. Step 6: Final answer
    x = 235,323.82

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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.