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Finding the Fourth Proportional to 329,732.40, 494,015.40 and 308,737.20

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Solution

The fourth proportional to 329,732.40, 494,015.40 and 308,737.20 is: 462,559.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,732.40 : 494,015.40 = 308,737.20 : x
  2. Step 2: Convert to fraction form
    329,732.40/494,015.40 = 308,737.20/x
  3. Step 3: Cross multiply
    329,732.40x = 494,015.40 × 308,737.20
  4. Step 4: Simplify right side
    329,732.40x = 152,520,931,352.88
  5. Step 5: Solve for x
    x = 152,520,931,352.88/329,732.40
  6. Step 6: Final answer
    x = 462,559.73

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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.