Home / 397,111.20-548,016.48-215,823.12

Finding the Fourth Proportional to 397,111.20, 548,016.48 and 215,823.12

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Solution

The fourth proportional to 397,111.20, 548,016.48 and 215,823.12 is: 297,837.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,111.20 : 548,016.48 = 215,823.12 : x
  2. Step 2: Convert to fraction form
    397,111.20/548,016.48 = 215,823.12/x
  3. Step 3: Cross multiply
    397,111.20x = 548,016.48 × 215,823.12
  4. Step 4: Simplify right side
    397,111.20x = 118,274,626,525.02
  5. Step 5: Solve for x
    x = 118,274,626,525.02/397,111.20
  6. Step 6: Final answer
    x = 297,837.55

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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.