Home / 258,230.03-387,367.35-71,241.53

Finding the Fourth Proportional to 258,230.03, 387,367.35 and 71,241.53

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Solution

The fourth proportional to 258,230.03, 387,367.35 and 71,241.53 is: 106,868.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,230.03 : 387,367.35 = 71,241.53 : x
  2. Step 2: Convert to fraction form
    258,230.03/387,367.35 = 71,241.53/x
  3. Step 3: Cross multiply
    258,230.03x = 387,367.35 × 71,241.53
  4. Step 4: Simplify right side
    258,230.03x = 27,596,640,749.21
  5. Step 5: Solve for x
    x = 27,596,640,749.21/258,230.03
  6. Step 6: Final answer
    x = 106,868.44

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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.