Home / 439,979.34-659,971.44-159,489.30

Finding the Fourth Proportional to 439,979.34, 659,971.44 and 159,489.30

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Solution

The fourth proportional to 439,979.34, 659,971.44 and 159,489.30 is: 239,234.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,979.34 : 659,971.44 = 159,489.30 : x
  2. Step 2: Convert to fraction form
    439,979.34/659,971.44 = 159,489.30/x
  3. Step 3: Cross multiply
    439,979.34x = 659,971.44 × 159,489.30
  4. Step 4: Simplify right side
    439,979.34x = 105,258,382,985.59
  5. Step 5: Solve for x
    x = 105,258,382,985.59/439,979.34
  6. Step 6: Final answer
    x = 239,234.83

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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.