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Finding the Fourth Proportional to 516,395.91, 774,276.75 and 179,291.73

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Solution

The fourth proportional to 516,395.91, 774,276.75 and 179,291.73 is: 268,827.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,395.91 : 774,276.75 = 179,291.73 : x
  2. Step 2: Convert to fraction form
    516,395.91/774,276.75 = 179,291.73/x
  3. Step 3: Cross multiply
    516,395.91x = 774,276.75 × 179,291.73
  4. Step 4: Simplify right side
    516,395.91x = 138,821,418,006.28
  5. Step 5: Solve for x
    x = 138,821,418,006.28/516,395.91
  6. Step 6: Final answer
    x = 268,827.49

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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.