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Finding the Fourth Proportional to 295,760.10, 443,640.15 and 211,779.30

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Solution

The fourth proportional to 295,760.10, 443,640.15 and 211,779.30 is: 317,668.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,760.10 : 443,640.15 = 211,779.30 : x
  2. Step 2: Convert to fraction form
    295,760.10/443,640.15 = 211,779.30/x
  3. Step 3: Cross multiply
    295,760.10x = 443,640.15 × 211,779.30
  4. Step 4: Simplify right side
    295,760.10x = 93,953,800,418.90
  5. Step 5: Solve for x
    x = 93,953,800,418.90/295,760.10
  6. Step 6: Final answer
    x = 317,668.95

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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.