Home / 228,918.80-343,430.40-71,163.20

Finding the Fourth Proportional to 228,918.80, 343,430.40 and 71,163.20

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Solution

The fourth proportional to 228,918.80, 343,430.40 and 71,163.20 is: 106,761.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,918.80 : 343,430.40 = 71,163.20 : x
  2. Step 2: Convert to fraction form
    228,918.80/343,430.40 = 71,163.20/x
  3. Step 3: Cross multiply
    228,918.80x = 343,430.40 × 71,163.20
  4. Step 4: Simplify right side
    228,918.80x = 24,439,606,241.28
  5. Step 5: Solve for x
    x = 24,439,606,241.28/228,918.80
  6. Step 6: Final answer
    x = 106,761.03

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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.