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Finding the Fourth Proportional to 328,880.70, 493,265.41 and 92,168.90

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Solution

The fourth proportional to 328,880.70, 493,265.41 and 92,168.90 is: 138,237.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,880.70 : 493,265.41 = 92,168.90 : x
  2. Step 2: Convert to fraction form
    328,880.70/493,265.41 = 92,168.90/x
  3. Step 3: Cross multiply
    328,880.70x = 493,265.41 × 92,168.90
  4. Step 4: Simplify right side
    328,880.70x = 45,463,730,247.75
  5. Step 5: Solve for x
    x = 45,463,730,247.75/328,880.70
  6. Step 6: Final answer
    x = 138,237.76

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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.