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Finding the Fourth Proportional to 295,890.10, 443,763.15 and 85,506.10

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Solution

The fourth proportional to 295,890.10, 443,763.15 and 85,506.10 is: 128,238.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,890.10 : 443,763.15 = 85,506.10 : x
  2. Step 2: Convert to fraction form
    295,890.10/443,763.15 = 85,506.10/x
  3. Step 3: Cross multiply
    295,890.10x = 443,763.15 × 85,506.10
  4. Step 4: Simplify right side
    295,890.10x = 37,944,456,280.22
  5. Step 5: Solve for x
    x = 37,944,456,280.22/295,890.10
  6. Step 6: Final answer
    x = 128,238.34

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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.