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Finding the Fourth Proportional to 199,545.88, 299,317.92 and 66,425.92

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Solution

The fourth proportional to 199,545.88, 299,317.92 and 66,425.92 is: 99,638.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,545.88 : 299,317.92 = 66,425.92 : x
  2. Step 2: Convert to fraction form
    199,545.88/299,317.92 = 66,425.92/x
  3. Step 3: Cross multiply
    199,545.88x = 299,317.92 × 66,425.92
  4. Step 4: Simplify right side
    199,545.88x = 19,882,468,208.49
  5. Step 5: Solve for x
    x = 19,882,468,208.49/199,545.88
  6. Step 6: Final answer
    x = 99,638.58

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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.