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Finding the Fourth Proportional to 515,814.78, 773,473.29 and 216,214.92

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Solution

The fourth proportional to 515,814.78, 773,473.29 and 216,214.92 is: 324,218.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,814.78 : 773,473.29 = 216,214.92 : x
  2. Step 2: Convert to fraction form
    515,814.78/773,473.29 = 216,214.92/x
  3. Step 3: Cross multiply
    515,814.78x = 773,473.29 × 216,214.92
  4. Step 4: Simplify right side
    515,814.78x = 167,236,465,519.49
  5. Step 5: Solve for x
    x = 167,236,465,519.49/515,814.78
  6. Step 6: Final answer
    x = 324,218.06

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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.