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Finding the Fourth Proportional to 373,196.32, 515,016.28 and 203,430.44

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Solution

The fourth proportional to 373,196.32, 515,016.28 and 203,430.44 is: 280,736.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,196.32 : 515,016.28 = 203,430.44 : x
  2. Step 2: Convert to fraction form
    373,196.32/515,016.28 = 203,430.44/x
  3. Step 3: Cross multiply
    373,196.32x = 515,016.28 × 203,430.44
  4. Step 4: Simplify right side
    373,196.32x = 104,769,988,447.56
  5. Step 5: Solve for x
    x = 104,769,988,447.56/373,196.32
  6. Step 6: Final answer
    x = 280,736.93

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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.