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Finding the Fourth Proportional to 199,079.80, 298,619.70 and 164,087.80

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Solution

The fourth proportional to 199,079.80, 298,619.70 and 164,087.80 is: 246,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,079.80 : 298,619.70 = 164,087.80 : x
  2. Step 2: Convert to fraction form
    199,079.80/298,619.70 = 164,087.80/x
  3. Step 3: Cross multiply
    199,079.80x = 298,619.70 × 164,087.80
  4. Step 4: Simplify right side
    199,079.80x = 48,999,849,609.66
  5. Step 5: Solve for x
    x = 48,999,849,609.66/199,079.80
  6. Step 6: Final answer
    x = 246,131.70

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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.