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Finding the Fourth Proportional to 397,851.57, 549,042.17 and 216,568.71

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Solution

The fourth proportional to 397,851.57, 549,042.17 and 216,568.71 is: 298,868.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,851.57 : 549,042.17 = 216,568.71 : x
  2. Step 2: Convert to fraction form
    397,851.57/549,042.17 = 216,568.71/x
  3. Step 3: Cross multiply
    397,851.57x = 549,042.17 × 216,568.71
  4. Step 4: Simplify right side
    397,851.57x = 118,905,353,409.66
  5. Step 5: Solve for x
    x = 118,905,353,409.66/397,851.57
  6. Step 6: Final answer
    x = 298,868.63

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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.