Home / 421,918.88-582,258.31-240,647.68

Finding the Fourth Proportional to 421,918.88, 582,258.31 and 240,647.68

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Solution

The fourth proportional to 421,918.88, 582,258.31 and 240,647.68 is: 332,099.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,918.88 : 582,258.31 = 240,647.68 : x
  2. Step 2: Convert to fraction form
    421,918.88/582,258.31 = 240,647.68/x
  3. Step 3: Cross multiply
    421,918.88x = 582,258.31 × 240,647.68
  4. Step 4: Simplify right side
    421,918.88x = 140,119,109,404.96
  5. Step 5: Solve for x
    x = 140,119,109,404.96/421,918.88
  6. Step 6: Final answer
    x = 332,099.64

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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.