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Finding the Fourth Proportional to 330,763.25, 495,751.21 and 230,379.95

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Solution

The fourth proportional to 330,763.25, 495,751.21 and 230,379.95 is: 345,295.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,763.25 : 495,751.21 = 230,379.95 : x
  2. Step 2: Convert to fraction form
    330,763.25/495,751.21 = 230,379.95/x
  3. Step 3: Cross multiply
    330,763.25x = 495,751.21 × 230,379.95
  4. Step 4: Simplify right side
    330,763.25x = 114,211,139,635.67
  5. Step 5: Solve for x
    x = 114,211,139,635.67/330,763.25
  6. Step 6: Final answer
    x = 345,295.73

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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.