Home / 251,890.10-378,272.55-133,792.10

Finding the Fourth Proportional to 251,890.10, 378,272.55 and 133,792.10

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Solution

The fourth proportional to 251,890.10, 378,272.55 and 133,792.10 is: 200,920.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,890.10 : 378,272.55 = 133,792.10 : x
  2. Step 2: Convert to fraction form
    251,890.10/378,272.55 = 133,792.10/x
  3. Step 3: Cross multiply
    251,890.10x = 378,272.55 × 133,792.10
  4. Step 4: Simplify right side
    251,890.10x = 50,609,878,836.86
  5. Step 5: Solve for x
    x = 50,609,878,836.86/251,890.10
  6. Step 6: Final answer
    x = 200,920.48

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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.