Home / 397,426.53-548,452.61-216,142.53

Finding the Fourth Proportional to 397,426.53, 548,452.61 and 216,142.53

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Solution

The fourth proportional to 397,426.53, 548,452.61 and 216,142.53 is: 298,278.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,426.53 : 548,452.61 = 216,142.53 : x
  2. Step 2: Convert to fraction form
    397,426.53/548,452.61 = 216,142.53/x
  3. Step 3: Cross multiply
    397,426.53x = 548,452.61 × 216,142.53
  4. Step 4: Simplify right side
    397,426.53x = 118,543,933,629.79
  5. Step 5: Solve for x
    x = 118,543,933,629.79/397,426.53
  6. Step 6: Final answer
    x = 298,278.86

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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.