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Finding the Fourth Proportional to 329,274.54, 493,813.80 and 139,731.84

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Solution

The fourth proportional to 329,274.54, 493,813.80 and 139,731.84 is: 209,556.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,274.54 : 493,813.80 = 139,731.84 : x
  2. Step 2: Convert to fraction form
    329,274.54/493,813.80 = 139,731.84/x
  3. Step 3: Cross multiply
    329,274.54x = 493,813.80 × 139,731.84
  4. Step 4: Simplify right side
    329,274.54x = 69,001,510,891.39
  5. Step 5: Solve for x
    x = 69,001,510,891.39/329,274.54
  6. Step 6: Final answer
    x = 209,556.17

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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.