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Finding the Fourth Proportional to 199,326.68, 298,651.68 and 120,274.80

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Solution

The fourth proportional to 199,326.68, 298,651.68 and 120,274.80 is: 180,208.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,326.68 : 298,651.68 = 120,274.80 : x
  2. Step 2: Convert to fraction form
    199,326.68/298,651.68 = 120,274.80/x
  3. Step 3: Cross multiply
    199,326.68x = 298,651.68 × 120,274.80
  4. Step 4: Simplify right side
    199,326.68x = 35,920,271,081.66
  5. Step 5: Solve for x
    x = 35,920,271,081.66/199,326.68
  6. Step 6: Final answer
    x = 180,208.04

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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.