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Finding the Fourth Proportional to 341,462.80, 512,002.20 and 131,107.60

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Solution

The fourth proportional to 341,462.80, 512,002.20 and 131,107.60 is: 196,587.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,462.80 : 512,002.20 = 131,107.60 : x
  2. Step 2: Convert to fraction form
    341,462.80/512,002.20 = 131,107.60/x
  3. Step 3: Cross multiply
    341,462.80x = 512,002.20 × 131,107.60
  4. Step 4: Simplify right side
    341,462.80x = 67,127,379,636.72
  5. Step 5: Solve for x
    x = 67,127,379,636.72/341,462.80
  6. Step 6: Final answer
    x = 196,587.68

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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.