Home / 397,261.61-548,231.84-215,985.74

Finding the Fourth Proportional to 397,261.61, 548,231.84 and 215,985.74

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Solution

The fourth proportional to 397,261.61, 548,231.84 and 215,985.74 is: 298,066.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,261.61 : 548,231.84 = 215,985.74 : x
  2. Step 2: Convert to fraction form
    397,261.61/548,231.84 = 215,985.74/x
  3. Step 3: Cross multiply
    397,261.61x = 548,231.84 × 215,985.74
  4. Step 4: Simplify right side
    397,261.61x = 118,410,260,941.54
  5. Step 5: Solve for x
    x = 118,410,260,941.54/397,261.61
  6. Step 6: Final answer
    x = 298,066.20

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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.