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Finding the Fourth Proportional to 329,994.45, 495,000.21 and 105,354.69

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Solution

The fourth proportional to 329,994.45, 495,000.21 and 105,354.69 is: 158,034.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,994.45 : 495,000.21 = 105,354.69 : x
  2. Step 2: Convert to fraction form
    329,994.45/495,000.21 = 105,354.69/x
  3. Step 3: Cross multiply
    329,994.45x = 495,000.21 × 105,354.69
  4. Step 4: Simplify right side
    329,994.45x = 52,150,593,674.48
  5. Step 5: Solve for x
    x = 52,150,593,674.48/329,994.45
  6. Step 6: Final answer
    x = 158,034.76

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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.