Home / 395,380.03-545,625.18-220,950.23

Finding the Fourth Proportional to 395,380.03, 545,625.18 and 220,950.23

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Solution

The fourth proportional to 395,380.03, 545,625.18 and 220,950.23 is: 304,911.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,380.03 : 545,625.18 = 220,950.23 : x
  2. Step 2: Convert to fraction form
    395,380.03/545,625.18 = 220,950.23/x
  3. Step 3: Cross multiply
    395,380.03x = 545,625.18 × 220,950.23
  4. Step 4: Simplify right side
    395,380.03x = 120,556,009,014.79
  5. Step 5: Solve for x
    x = 120,556,009,014.79/395,380.03
  6. Step 6: Final answer
    x = 304,911.73

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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.