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Finding the Fourth Proportional to 372,999.32, 514,742.84 and 203,236.28

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Solution

The fourth proportional to 372,999.32, 514,742.84 and 203,236.28 is: 280,468.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,999.32 : 514,742.84 = 203,236.28 : x
  2. Step 2: Convert to fraction form
    372,999.32/514,742.84 = 203,236.28/x
  3. Step 3: Cross multiply
    372,999.32x = 514,742.84 × 203,236.28
  4. Step 4: Simplify right side
    372,999.32x = 104,614,419,958.24
  5. Step 5: Solve for x
    x = 104,614,419,958.24/372,999.32
  6. Step 6: Final answer
    x = 280,468.13

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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.