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Finding the Fourth Proportional to 329,286.07, 493,891.38 and 86,150.62

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Solution

The fourth proportional to 329,286.07, 493,891.38 and 86,150.62 is: 129,216.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,286.07 : 493,891.38 = 86,150.62 : x
  2. Step 2: Convert to fraction form
    329,286.07/493,891.38 = 86,150.62/x
  3. Step 3: Cross multiply
    329,286.07x = 493,891.38 × 86,150.62
  4. Step 4: Simplify right side
    329,286.07x = 42,549,048,235.79
  5. Step 5: Solve for x
    x = 42,549,048,235.79/329,286.07
  6. Step 6: Final answer
    x = 129,216.06

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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.