Home / 395,475.12-545,757.30-214,189.20

Finding the Fourth Proportional to 395,475.12, 545,757.30 and 214,189.20

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Solution

The fourth proportional to 395,475.12, 545,757.30 and 214,189.20 is: 295,581.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,475.12 : 545,757.30 = 214,189.20 : x
  2. Step 2: Convert to fraction form
    395,475.12/545,757.30 = 214,189.20/x
  3. Step 3: Cross multiply
    395,475.12x = 545,757.30 × 214,189.20
  4. Step 4: Simplify right side
    395,475.12x = 116,895,319,481.16
  5. Step 5: Solve for x
    x = 116,895,319,481.16/395,475.12
  6. Step 6: Final answer
    x = 295,581.98

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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.