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Finding the Fourth Proportional to 210,751.59, 316,350.18 and 205,992.13

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Solution

The fourth proportional to 210,751.59, 316,350.18 and 205,992.13 is: 309,205.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,751.59 : 316,350.18 = 205,992.13 : x
  2. Step 2: Convert to fraction form
    210,751.59/316,350.18 = 205,992.13/x
  3. Step 3: Cross multiply
    210,751.59x = 316,350.18 × 205,992.13
  4. Step 4: Simplify right side
    210,751.59x = 65,165,647,404.08
  5. Step 5: Solve for x
    x = 65,165,647,404.08/210,751.59
  6. Step 6: Final answer
    x = 309,205.96

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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.