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Finding the Fourth Proportional to 356,397.66, 491,844.96 and 203,477.22

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Solution

The fourth proportional to 356,397.66, 491,844.96 and 203,477.22 is: 280,807.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,397.66 : 491,844.96 = 203,477.22 : x
  2. Step 2: Convert to fraction form
    356,397.66/491,844.96 = 203,477.22/x
  3. Step 3: Cross multiply
    356,397.66x = 491,844.96 × 203,477.22
  4. Step 4: Simplify right side
    356,397.66x = 100,079,245,131.81
  5. Step 5: Solve for x
    x = 100,079,245,131.81/356,397.66
  6. Step 6: Final answer
    x = 280,807.81

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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.