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Finding the Fourth Proportional to 550,424.92, 825,710.82 and 217,923.16

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Solution

The fourth proportional to 550,424.92, 825,710.82 and 217,923.16 is: 326,913.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,424.92 : 825,710.82 = 217,923.16 : x
  2. Step 2: Convert to fraction form
    550,424.92/825,710.82 = 217,923.16/x
  3. Step 3: Cross multiply
    550,424.92x = 825,710.82 × 217,923.16
  4. Step 4: Simplify right side
    550,424.92x = 179,941,511,140.59
  5. Step 5: Solve for x
    x = 179,941,511,140.59/550,424.92
  6. Step 6: Final answer
    x = 326,913.82

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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.