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Finding the Fourth Proportional to 206,000.10, 309,230.55 and 192,464.10

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Solution

The fourth proportional to 206,000.10, 309,230.55 and 192,464.10 is: 288,911.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,000.10 : 309,230.55 = 192,464.10 : x
  2. Step 2: Convert to fraction form
    206,000.10/309,230.55 = 192,464.10/x
  3. Step 3: Cross multiply
    206,000.10x = 309,230.55 × 192,464.10
  4. Step 4: Simplify right side
    206,000.10x = 59,515,779,498.26
  5. Step 5: Solve for x
    x = 59,515,779,498.26/206,000.10
  6. Step 6: Final answer
    x = 288,911.41

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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.