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Finding the Fourth Proportional to 341,465.80, 512,198.70 and 128,233.30

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Solution

The fourth proportional to 341,465.80, 512,198.70 and 128,233.30 is: 192,349.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,465.80 : 512,198.70 = 128,233.30 : x
  2. Step 2: Convert to fraction form
    341,465.80/512,198.70 = 128,233.30/x
  3. Step 3: Cross multiply
    341,465.80x = 512,198.70 × 128,233.30
  4. Step 4: Simplify right side
    341,465.80x = 65,680,929,556.71
  5. Step 5: Solve for x
    x = 65,680,929,556.71/341,465.80
  6. Step 6: Final answer
    x = 192,349.95

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.