Home / 405,322.74-559,349.46-221,566.59

Finding the Fourth Proportional to 405,322.74, 559,349.46 and 221,566.59

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Solution

The fourth proportional to 405,322.74, 559,349.46 and 221,566.59 is: 305,764.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,322.74 : 559,349.46 = 221,566.59 : x
  2. Step 2: Convert to fraction form
    405,322.74/559,349.46 = 221,566.59/x
  3. Step 3: Cross multiply
    405,322.74x = 559,349.46 × 221,566.59
  4. Step 4: Simplify right side
    405,322.74x = 123,933,152,470.54
  5. Step 5: Solve for x
    x = 123,933,152,470.54/405,322.74
  6. Step 6: Final answer
    x = 305,764.12

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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.