Home / 405,825.21-559,933.71-242,414.85

Finding the Fourth Proportional to 405,825.21, 559,933.71 and 242,414.85

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Solution

The fourth proportional to 405,825.21, 559,933.71 and 242,414.85 is: 334,469.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,825.21 : 559,933.71 = 242,414.85 : x
  2. Step 2: Convert to fraction form
    405,825.21/559,933.71 = 242,414.85/x
  3. Step 3: Cross multiply
    405,825.21x = 559,933.71 × 242,414.85
  4. Step 4: Simplify right side
    405,825.21x = 135,736,246,319.59
  5. Step 5: Solve for x
    x = 135,736,246,319.59/405,825.21
  6. Step 6: Final answer
    x = 334,469.72

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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.