Home / 438,734.00-658,017.78-213,868.28

Finding the Fourth Proportional to 438,734.00, 658,017.78 and 213,868.28

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Solution

The fourth proportional to 438,734.00, 658,017.78 and 213,868.28 is: 320,761.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,734.00 : 658,017.78 = 213,868.28 : x
  2. Step 2: Convert to fraction form
    438,734.00/658,017.78 = 213,868.28/x
  3. Step 3: Cross multiply
    438,734.00x = 658,017.78 × 213,868.28
  4. Step 4: Simplify right side
    438,734.00x = 140,729,131,661.06
  5. Step 5: Solve for x
    x = 140,729,131,661.06/438,734.00
  6. Step 6: Final answer
    x = 320,761.85

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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.