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Finding the Fourth Proportional to 341,835.20, 512,599.20 and 131,403.20

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Solution

The fourth proportional to 341,835.20, 512,599.20 and 131,403.20 is: 197,045.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,835.20 : 512,599.20 = 131,403.20 : x
  2. Step 2: Convert to fraction form
    341,835.20/512,599.20 = 131,403.20/x
  3. Step 3: Cross multiply
    341,835.20x = 512,599.20 × 131,403.20
  4. Step 4: Simplify right side
    341,835.20x = 67,357,175,197.44
  5. Step 5: Solve for x
    x = 67,357,175,197.44/341,835.20
  6. Step 6: Final answer
    x = 197,045.76

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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.