Home / 387,971.39-582,099.23-163,388.36

Finding the Fourth Proportional to 387,971.39, 582,099.23 and 163,388.36

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Solution

The fourth proportional to 387,971.39, 582,099.23 and 163,388.36 is: 245,142.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,971.39 : 582,099.23 = 163,388.36 : x
  2. Step 2: Convert to fraction form
    387,971.39/582,099.23 = 163,388.36/x
  3. Step 3: Cross multiply
    387,971.39x = 582,099.23 × 163,388.36
  4. Step 4: Simplify right side
    387,971.39x = 95,108,238,546.96
  5. Step 5: Solve for x
    x = 95,108,238,546.96/387,971.39
  6. Step 6: Final answer
    x = 245,142.40

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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.