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Finding the Fourth Proportional to 199,137.78, 298,706.67 and 58,885.47

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Solution

The fourth proportional to 199,137.78, 298,706.67 and 58,885.47 is: 88,328.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,137.78 : 298,706.67 = 58,885.47 : x
  2. Step 2: Convert to fraction form
    199,137.78/298,706.67 = 58,885.47/x
  3. Step 3: Cross multiply
    199,137.78x = 298,706.67 × 58,885.47
  4. Step 4: Simplify right side
    199,137.78x = 17,589,482,655.08
  5. Step 5: Solve for x
    x = 17,589,482,655.08/199,137.78
  6. Step 6: Final answer
    x = 88,328.21

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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.