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Finding the Fourth Proportional to 329,242.97, 493,853.45 and 139,581.32

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Solution

The fourth proportional to 329,242.97, 493,853.45 and 139,581.32 is: 209,367.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,242.97 : 493,853.45 = 139,581.32 : x
  2. Step 2: Convert to fraction form
    329,242.97/493,853.45 = 139,581.32/x
  3. Step 3: Cross multiply
    329,242.97x = 493,853.45 × 139,581.32
  4. Step 4: Simplify right side
    329,242.97x = 68,932,713,270.38
  5. Step 5: Solve for x
    x = 68,932,713,270.38/329,242.97
  6. Step 6: Final answer
    x = 209,367.30

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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.