Home / 405,455.12-559,485.24-224,137.88

Finding the Fourth Proportional to 405,455.12, 559,485.24 and 224,137.88

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Solution

The fourth proportional to 405,455.12, 559,485.24 and 224,137.88 is: 309,286.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,455.12 : 559,485.24 = 224,137.88 : x
  2. Step 2: Convert to fraction form
    405,455.12/559,485.24 = 224,137.88/x
  3. Step 3: Cross multiply
    405,455.12x = 559,485.24 × 224,137.88
  4. Step 4: Simplify right side
    405,455.12x = 125,401,835,584.89
  5. Step 5: Solve for x
    x = 125,401,835,584.89/405,455.12
  6. Step 6: Final answer
    x = 309,286.60

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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.