Home / 251,337.12-346,845.60-138,160.56

Finding the Fourth Proportional to 251,337.12, 346,845.60 and 138,160.56

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Solution

The fourth proportional to 251,337.12, 346,845.60 and 138,160.56 is: 190,661.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,337.12 : 346,845.60 = 138,160.56 : x
  2. Step 2: Convert to fraction form
    251,337.12/346,845.60 = 138,160.56/x
  3. Step 3: Cross multiply
    251,337.12x = 346,845.60 × 138,160.56
  4. Step 4: Simplify right side
    251,337.12x = 47,920,382,329.54
  5. Step 5: Solve for x
    x = 47,920,382,329.54/251,337.12
  6. Step 6: Final answer
    x = 190,661.78

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1.5x scale

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.