Home / 305,415.77-458,345.28-214,863.03

Finding the Fourth Proportional to 305,415.77, 458,345.28 and 214,863.03

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Solution

The fourth proportional to 305,415.77, 458,345.28 and 214,863.03 is: 322,450.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,415.77 : 458,345.28 = 214,863.03 : x
  2. Step 2: Convert to fraction form
    305,415.77/458,345.28 = 214,863.03/x
  3. Step 3: Cross multiply
    305,415.77x = 458,345.28 × 214,863.03
  4. Step 4: Simplify right side
    305,415.77x = 98,481,456,452.73
  5. Step 5: Solve for x
    x = 98,481,456,452.73/305,415.77
  6. Step 6: Final answer
    x = 322,450.47

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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.