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Finding the Fourth Proportional to 329,756.20, 494,712.29 and 262,542.40

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Solution

The fourth proportional to 329,756.20, 494,712.29 and 262,542.40 is: 393,875.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,756.20 : 494,712.29 = 262,542.40 : x
  2. Step 2: Convert to fraction form
    329,756.20/494,712.29 = 262,542.40/x
  3. Step 3: Cross multiply
    329,756.20x = 494,712.29 × 262,542.40
  4. Step 4: Simplify right side
    329,756.20x = 129,882,951,926.10
  5. Step 5: Solve for x
    x = 129,882,951,926.10/329,756.20
  6. Step 6: Final answer
    x = 393,875.69

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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.