Home / 423,984.60-635,581.62-143,305.56

Finding the Fourth Proportional to 423,984.60, 635,581.62 and 143,305.56

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Solution

The fourth proportional to 423,984.60, 635,581.62 and 143,305.56 is: 214,824.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,984.60 : 635,581.62 = 143,305.56 : x
  2. Step 2: Convert to fraction form
    423,984.60/635,581.62 = 143,305.56/x
  3. Step 3: Cross multiply
    423,984.60x = 635,581.62 × 143,305.56
  4. Step 4: Simplify right side
    423,984.60x = 91,082,379,979.81
  5. Step 5: Solve for x
    x = 91,082,379,979.81/423,984.60
  6. Step 6: Final answer
    x = 214,824.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.