Home / 328,904.78-493,270.77-141,874.70

Finding the Fourth Proportional to 328,904.78, 493,270.77 and 141,874.70

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Solution

The fourth proportional to 328,904.78, 493,270.77 and 141,874.70 is: 212,774.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,904.78 : 493,270.77 = 141,874.70 : x
  2. Step 2: Convert to fraction form
    328,904.78/493,270.77 = 141,874.70/x
  3. Step 3: Cross multiply
    328,904.78x = 493,270.77 × 141,874.70
  4. Step 4: Simplify right side
    328,904.78x = 69,982,642,512.52
  5. Step 5: Solve for x
    x = 69,982,642,512.52/328,904.78
  6. Step 6: Final answer
    x = 212,774.78

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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.