Home / 258,431.82-387,383.23-251,948.73

Finding the Fourth Proportional to 258,431.82, 387,383.23 and 251,948.73

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Solution

The fourth proportional to 258,431.82, 387,383.23 and 251,948.73 is: 377,665.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,431.82 : 387,383.23 = 251,948.73 : x
  2. Step 2: Convert to fraction form
    258,431.82/387,383.23 = 251,948.73/x
  3. Step 3: Cross multiply
    258,431.82x = 387,383.23 × 251,948.73
  4. Step 4: Simplify right side
    258,431.82x = 97,600,710,993.18
  5. Step 5: Solve for x
    x = 97,600,710,993.18/258,431.82
  6. Step 6: Final answer
    x = 377,665.23

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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.