Home / 395,132.04-545,261.30-216,249.48

Finding the Fourth Proportional to 395,132.04, 545,261.30 and 216,249.48

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Solution

The fourth proportional to 395,132.04, 545,261.30 and 216,249.48 is: 298,412.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,132.04 : 545,261.30 = 216,249.48 : x
  2. Step 2: Convert to fraction form
    395,132.04/545,261.30 = 216,249.48/x
  3. Step 3: Cross multiply
    395,132.04x = 545,261.30 × 216,249.48
  4. Step 4: Simplify right side
    395,132.04x = 117,912,472,589.12
  5. Step 5: Solve for x
    x = 117,912,472,589.12/395,132.04
  6. Step 6: Final answer
    x = 298,412.84

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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.