Home / 397,204.56-548,119.26-215,915.58

Finding the Fourth Proportional to 397,204.56, 548,119.26 and 215,915.58

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Solution

The fourth proportional to 397,204.56, 548,119.26 and 215,915.58 is: 297,950.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,204.56 : 548,119.26 = 215,915.58 : x
  2. Step 2: Convert to fraction form
    397,204.56/548,119.26 = 215,915.58/x
  3. Step 3: Cross multiply
    397,204.56x = 548,119.26 × 215,915.58
  4. Step 4: Simplify right side
    397,204.56x = 118,347,487,932.07
  5. Step 5: Solve for x
    x = 118,347,487,932.07/397,204.56
  6. Step 6: Final answer
    x = 297,950.98

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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.