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Finding the Fourth Proportional to 329,698.80, 494,548.20 and 310,015.80

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Solution

The fourth proportional to 329,698.80, 494,548.20 and 310,015.80 is: 465,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,698.80 : 494,548.20 = 310,015.80 : x
  2. Step 2: Convert to fraction form
    329,698.80/494,548.20 = 310,015.80/x
  3. Step 3: Cross multiply
    329,698.80x = 494,548.20 × 310,015.80
  4. Step 4: Simplify right side
    329,698.80x = 153,317,755,861.56
  5. Step 5: Solve for x
    x = 153,317,755,861.56/329,698.80
  6. Step 6: Final answer
    x = 465,023.70

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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.