Home / 405,021.76-558,935.22-223,732.96

Finding the Fourth Proportional to 405,021.76, 558,935.22 and 223,732.96

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Solution

The fourth proportional to 405,021.76, 558,935.22 and 223,732.96 is: 308,754.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,021.76 : 558,935.22 = 223,732.96 : x
  2. Step 2: Convert to fraction form
    405,021.76/558,935.22 = 223,732.96/x
  3. Step 3: Cross multiply
    405,021.76x = 558,935.22 × 223,732.96
  4. Step 4: Simplify right side
    405,021.76x = 125,052,231,218.85
  5. Step 5: Solve for x
    x = 125,052,231,218.85/405,021.76
  6. Step 6: Final answer
    x = 308,754.35

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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.