Home / 228,916.80-343,427.40-71,161.20

Finding the Fourth Proportional to 228,916.80, 343,427.40 and 71,161.20

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Solution

The fourth proportional to 228,916.80, 343,427.40 and 71,161.20 is: 106,758.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,916.80 : 343,427.40 = 71,161.20 : x
  2. Step 2: Convert to fraction form
    228,916.80/343,427.40 = 71,161.20/x
  3. Step 3: Cross multiply
    228,916.80x = 343,427.40 × 71,161.20
  4. Step 4: Simplify right side
    228,916.80x = 24,438,705,896.88
  5. Step 5: Solve for x
    x = 24,438,705,896.88/228,916.80
  6. Step 6: Final answer
    x = 106,758.03

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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.