Home / 397,286.47-548,266.08-216,010.57

Finding the Fourth Proportional to 397,286.47, 548,266.08 and 216,010.57

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Solution

The fourth proportional to 397,286.47, 548,266.08 and 216,010.57 is: 298,100.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,286.47 : 548,266.08 = 216,010.57 : x
  2. Step 2: Convert to fraction form
    397,286.47/548,266.08 = 216,010.57/x
  3. Step 3: Cross multiply
    397,286.47x = 548,266.08 × 216,010.57
  4. Step 4: Simplify right side
    397,286.47x = 118,431,268,452.47
  5. Step 5: Solve for x
    x = 118,431,268,452.47/397,286.47
  6. Step 6: Final answer
    x = 298,100.43

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1.5x scale

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.