Home / 397,436.25-548,456.72-216,144.28

Finding the Fourth Proportional to 397,436.25, 548,456.72 and 216,144.28

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Solution

The fourth proportional to 397,436.25, 548,456.72 and 216,144.28 is: 298,276.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,436.25 : 548,456.72 = 216,144.28 : x
  2. Step 2: Convert to fraction form
    397,436.25/548,456.72 = 216,144.28/x
  3. Step 3: Cross multiply
    397,436.25x = 548,456.72 × 216,144.28
  4. Step 4: Simplify right side
    397,436.25x = 118,545,780,113.28
  5. Step 5: Solve for x
    x = 118,545,780,113.28/397,436.25
  6. Step 6: Final answer
    x = 298,276.21

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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.