Home / 397,362.40-548,480.18-270,111.80

Finding the Fourth Proportional to 397,362.40, 548,480.18 and 270,111.80

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Solution

The fourth proportional to 397,362.40, 548,480.18 and 270,111.80 is: 372,835.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,362.40 : 548,480.18 = 270,111.80 : x
  2. Step 2: Convert to fraction form
    397,362.40/548,480.18 = 270,111.80/x
  3. Step 3: Cross multiply
    397,362.40x = 548,480.18 × 270,111.80
  4. Step 4: Simplify right side
    397,362.40x = 148,150,967,333.57
  5. Step 5: Solve for x
    x = 148,150,967,333.57/397,362.40
  6. Step 6: Final answer
    x = 372,835.90

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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.