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Finding the Fourth Proportional to 397,466.87, 548,511.41 and 216,182.79

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Solution

The fourth proportional to 397,466.87, 548,511.41 and 216,182.79 is: 298,336.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,466.87 : 548,511.41 = 216,182.79 : x
  2. Step 2: Convert to fraction form
    397,466.87/548,511.41 = 216,182.79/x
  3. Step 3: Cross multiply
    397,466.87x = 548,511.41 × 216,182.79
  4. Step 4: Simplify right side
    397,466.87x = 118,578,727,501.09
  5. Step 5: Solve for x
    x = 118,578,727,501.09/397,466.87
  6. Step 6: Final answer
    x = 298,336.13

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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.