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Finding the Fourth Proportional to 275,740.29, 413,964.64 and 212,600.52

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Solution

The fourth proportional to 275,740.29, 413,964.64 and 212,600.52 is: 319,173.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,740.29 : 413,964.64 = 212,600.52 : x
  2. Step 2: Convert to fraction form
    275,740.29/413,964.64 = 212,600.52/x
  3. Step 3: Cross multiply
    275,740.29x = 413,964.64 × 212,600.52
  4. Step 4: Simplify right side
    275,740.29x = 88,009,097,991.36
  5. Step 5: Solve for x
    x = 88,009,097,991.36/275,740.29
  6. Step 6: Final answer
    x = 319,173.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.