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Finding the Fourth Proportional to 372,182.94, 558,493.11 and 135,539.82

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Solution

The fourth proportional to 372,182.94, 558,493.11 and 135,539.82 is: 203,389.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,182.94 : 558,493.11 = 135,539.82 : x
  2. Step 2: Convert to fraction form
    372,182.94/558,493.11 = 135,539.82/x
  3. Step 3: Cross multiply
    372,182.94x = 558,493.11 × 135,539.82
  4. Step 4: Simplify right side
    372,182.94x = 75,698,055,600.64
  5. Step 5: Solve for x
    x = 75,698,055,600.64/372,182.94
  6. Step 6: Final answer
    x = 203,389.38

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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.