Home / 218,822.36-328,232.82-71,078.36

Finding the Fourth Proportional to 218,822.36, 328,232.82 and 71,078.36

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Solution

The fourth proportional to 218,822.36, 328,232.82 and 71,078.36 is: 106,617.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,822.36 : 328,232.82 = 71,078.36 : x
  2. Step 2: Convert to fraction form
    218,822.36/328,232.82 = 71,078.36/x
  3. Step 3: Cross multiply
    218,822.36x = 328,232.82 × 71,078.36
  4. Step 4: Simplify right side
    218,822.36x = 23,330,250,543.78
  5. Step 5: Solve for x
    x = 23,330,250,543.78/218,822.36
  6. Step 6: Final answer
    x = 106,617.31

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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.