Home / 378,212.55-567,360.35-188,720.61

Finding the Fourth Proportional to 378,212.55, 567,360.35 and 188,720.61

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Solution

The fourth proportional to 378,212.55, 567,360.35 and 188,720.61 is: 283,101.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,212.55 : 567,360.35 = 188,720.61 : x
  2. Step 2: Convert to fraction form
    378,212.55/567,360.35 = 188,720.61/x
  3. Step 3: Cross multiply
    378,212.55x = 567,360.35 × 188,720.61
  4. Step 4: Simplify right side
    378,212.55x = 107,072,588,978.31
  5. Step 5: Solve for x
    x = 107,072,588,978.31/378,212.55
  6. Step 6: Final answer
    x = 283,101.63

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1.5x scale

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.