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Finding the Fourth Proportional to 200,721.93, 301,083.41 and 67,695.63

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Solution

The fourth proportional to 200,721.93, 301,083.41 and 67,695.63 is: 101,543.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,721.93 : 301,083.41 = 67,695.63 : x
  2. Step 2: Convert to fraction form
    200,721.93/301,083.41 = 67,695.63/x
  3. Step 3: Cross multiply
    200,721.93x = 301,083.41 × 67,695.63
  4. Step 4: Simplify right side
    200,721.93x = 20,382,031,122.50
  5. Step 5: Solve for x
    x = 20,382,031,122.50/200,721.93
  6. Step 6: Final answer
    x = 101,543.62

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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.