Home / 405,057.24-558,979.92-223,765.20

Finding the Fourth Proportional to 405,057.24, 558,979.92 and 223,765.20

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Solution

The fourth proportional to 405,057.24, 558,979.92 and 223,765.20 is: 308,796.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,057.24 : 558,979.92 = 223,765.20 : x
  2. Step 2: Convert to fraction form
    405,057.24/558,979.92 = 223,765.20/x
  3. Step 3: Cross multiply
    405,057.24x = 558,979.92 × 223,765.20
  4. Step 4: Simplify right side
    405,057.24x = 125,080,253,594.78
  5. Step 5: Solve for x
    x = 125,080,253,594.78/405,057.24
  6. Step 6: Final answer
    x = 308,796.49

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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.