Home / 328,618.85-493,015.61-103,983.28

Finding the Fourth Proportional to 328,618.85, 493,015.61 and 103,983.28

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Solution

The fourth proportional to 328,618.85, 493,015.61 and 103,983.28 is: 156,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,618.85 : 493,015.61 = 103,983.28 : x
  2. Step 2: Convert to fraction form
    328,618.85/493,015.61 = 103,983.28/x
  3. Step 3: Cross multiply
    328,618.85x = 493,015.61 × 103,983.28
  4. Step 4: Simplify right side
    328,618.85x = 51,265,377,234.01
  5. Step 5: Solve for x
    x = 51,265,377,234.01/328,618.85
  6. Step 6: Final answer
    x = 156,002.55

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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.