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Finding the Fourth Proportional to 341,442.30, 512,163.45 and 131,085.30

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Solution

The fourth proportional to 341,442.30, 512,163.45 and 131,085.30 is: 196,627.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,442.30 : 512,163.45 = 131,085.30 : x
  2. Step 2: Convert to fraction form
    341,442.30/512,163.45 = 131,085.30/x
  3. Step 3: Cross multiply
    341,442.30x = 512,163.45 × 131,085.30
  4. Step 4: Simplify right side
    341,442.30x = 67,137,099,492.29
  5. Step 5: Solve for x
    x = 67,137,099,492.29/341,442.30
  6. Step 6: Final answer
    x = 196,627.95

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1.5x scale

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.