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Finding the Fourth Proportional to 356,399.92, 491,848.08 and 203,479.48

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Solution

The fourth proportional to 356,399.92, 491,848.08 and 203,479.48 is: 280,810.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,399.92 : 491,848.08 = 203,479.48 : x
  2. Step 2: Convert to fraction form
    356,399.92/491,848.08 = 203,479.48/x
  3. Step 3: Cross multiply
    356,399.92x = 491,848.08 × 203,479.48
  4. Step 4: Simplify right side
    356,399.92x = 100,080,991,557.40
  5. Step 5: Solve for x
    x = 100,080,991,557.40/356,399.92
  6. Step 6: Final answer
    x = 280,810.93

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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.