Home / 399,231.25-598,855.16-143,080.47

Finding the Fourth Proportional to 399,231.25, 598,855.16 and 143,080.47

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Solution

The fourth proportional to 399,231.25, 598,855.16 and 143,080.47 is: 214,623.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,231.25 : 598,855.16 = 143,080.47 : x
  2. Step 2: Convert to fraction form
    399,231.25/598,855.16 = 143,080.47/x
  3. Step 3: Cross multiply
    399,231.25x = 598,855.16 × 143,080.47
  4. Step 4: Simplify right side
    399,231.25x = 85,684,478,112.43
  5. Step 5: Solve for x
    x = 85,684,478,112.43/399,231.25
  6. Step 6: Final answer
    x = 214,623.68

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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.