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Finding the Fourth Proportional to 397,326.30, 548,295.18 and 216,038.34

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Solution

The fourth proportional to 397,326.30, 548,295.18 and 216,038.34 is: 298,124.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,326.30 : 548,295.18 = 216,038.34 : x
  2. Step 2: Convert to fraction form
    397,326.30/548,295.18 = 216,038.34/x
  3. Step 3: Cross multiply
    397,326.30x = 548,295.18 × 216,038.34
  4. Step 4: Simplify right side
    397,326.30x = 118,452,780,517.20
  5. Step 5: Solve for x
    x = 118,452,780,517.20/397,326.30
  6. Step 6: Final answer
    x = 298,124.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.