Home / 258,241.09-387,383.98-71,252.57

Finding the Fourth Proportional to 258,241.09, 387,383.98 and 71,252.57

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Solution

The fourth proportional to 258,241.09, 387,383.98 and 71,252.57 is: 106,885.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,241.09 : 387,383.98 = 71,252.57 : x
  2. Step 2: Convert to fraction form
    258,241.09/387,383.98 = 71,252.57/x
  3. Step 3: Cross multiply
    258,241.09x = 387,383.98 × 71,252.57
  4. Step 4: Simplify right side
    258,241.09x = 27,602,103,795.57
  5. Step 5: Solve for x
    x = 27,602,103,795.57/258,241.09
  6. Step 6: Final answer
    x = 106,885.02

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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.