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Finding the Fourth Proportional to 389,243.63, 536,952.24 and 338,141.64

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Solution

The fourth proportional to 389,243.63, 536,952.24 and 338,141.64 is: 466,458.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,243.63 : 536,952.24 = 338,141.64 : x
  2. Step 2: Convert to fraction form
    389,243.63/536,952.24 = 338,141.64/x
  3. Step 3: Cross multiply
    389,243.63x = 536,952.24 × 338,141.64
  4. Step 4: Simplify right side
    389,243.63x = 181,565,910,028.49
  5. Step 5: Solve for x
    x = 181,565,910,028.49/389,243.63
  6. Step 6: Final answer
    x = 466,458.27

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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.