Home / 258,232.11-387,370.48-71,243.61

Finding the Fourth Proportional to 258,232.11, 387,370.48 and 71,243.61

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Solution

The fourth proportional to 258,232.11, 387,370.48 and 71,243.61 is: 106,871.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,232.11 : 387,370.48 = 71,243.61 : x
  2. Step 2: Convert to fraction form
    258,232.11/387,370.48 = 71,243.61/x
  3. Step 3: Cross multiply
    258,232.11x = 387,370.48 × 71,243.61
  4. Step 4: Simplify right side
    258,232.11x = 27,597,671,402.63
  5. Step 5: Solve for x
    x = 27,597,671,402.63/258,232.11
  6. Step 6: Final answer
    x = 106,871.57

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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.