Home / 251,432.68-346,977.10-138,255.43

Finding the Fourth Proportional to 251,432.68, 346,977.10 and 138,255.43

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Solution

The fourth proportional to 251,432.68, 346,977.10 and 138,255.43 is: 190,792.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,432.68 : 346,977.10 = 138,255.43 : x
  2. Step 2: Convert to fraction form
    251,432.68/346,977.10 = 138,255.43/x
  3. Step 3: Cross multiply
    251,432.68x = 346,977.10 × 138,255.43
  4. Step 4: Simplify right side
    251,432.68x = 47,971,468,160.65
  5. Step 5: Solve for x
    x = 47,971,468,160.65/251,432.68
  6. Step 6: Final answer
    x = 190,792.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.