Home / 395,192.95-545,360.25-220,765.44

Finding the Fourth Proportional to 395,192.95, 545,360.25 and 220,765.44

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Solution

The fourth proportional to 395,192.95, 545,360.25 and 220,765.44 is: 304,652.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,192.95 : 545,360.25 = 220,765.44 : x
  2. Step 2: Convert to fraction form
    395,192.95/545,360.25 = 220,765.44/x
  3. Step 3: Cross multiply
    395,192.95x = 545,360.25 × 220,765.44
  4. Step 4: Simplify right side
    395,192.95x = 120,396,695,549.76
  5. Step 5: Solve for x
    x = 120,396,695,549.76/395,192.95
  6. Step 6: Final answer
    x = 304,652.94

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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.