Home / 405,919.78-560,157.87-224,639.26

Finding the Fourth Proportional to 405,919.78, 560,157.87 and 224,639.26

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Solution

The fourth proportional to 405,919.78, 560,157.87 and 224,639.26 is: 309,995.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,919.78 : 560,157.87 = 224,639.26 : x
  2. Step 2: Convert to fraction form
    405,919.78/560,157.87 = 224,639.26/x
  3. Step 3: Cross multiply
    405,919.78x = 560,157.87 × 224,639.26
  4. Step 4: Simplify right side
    405,919.78x = 125,833,449,399.98
  5. Step 5: Solve for x
    x = 125,833,449,399.98/405,919.78
  6. Step 6: Final answer
    x = 309,995.86

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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.