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Finding the Fourth Proportional to 199,060, 274,702.80 and 109,636

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Solution

The fourth proportional to 199,060, 274,702.80 and 109,636 is: 151,297.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,060 : 274,702.80 = 109,636 : x
  2. Step 2: Convert to fraction form
    199,060/274,702.80 = 109,636/x
  3. Step 3: Cross multiply
    199,060x = 274,702.80 × 109,636
  4. Step 4: Simplify right side
    199,060x = 30,117,316,180.80
  5. Step 5: Solve for x
    x = 30,117,316,180.80/199,060
  6. Step 6: Final answer
    x = 151,297.68

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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.