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Finding the Fourth Proportional to 355,856, 533,860.12 and 131,217.04

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Solution

The fourth proportional to 355,856, 533,860.12 and 131,217.04 is: 196,853.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,856 : 533,860.12 = 131,217.04 : x
  2. Step 2: Convert to fraction form
    355,856/533,860.12 = 131,217.04/x
  3. Step 3: Cross multiply
    355,856x = 533,860.12 × 131,217.04
  4. Step 4: Simplify right side
    355,856x = 70,051,544,720.44
  5. Step 5: Solve for x
    x = 70,051,544,720.44/355,856
  6. Step 6: Final answer
    x = 196,853.63

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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.