Home / 264,211.75-396,234.37-86,677.39

Finding the Fourth Proportional to 264,211.75, 396,234.37 and 86,677.39

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Solution

The fourth proportional to 264,211.75, 396,234.37 and 86,677.39 is: 129,988.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,211.75 : 396,234.37 = 86,677.39 : x
  2. Step 2: Convert to fraction form
    264,211.75/396,234.37 = 86,677.39/x
  3. Step 3: Cross multiply
    264,211.75x = 396,234.37 × 86,677.39
  4. Step 4: Simplify right side
    264,211.75x = 34,344,561,019.89
  5. Step 5: Solve for x
    x = 34,344,561,019.89/264,211.75
  6. Step 6: Final answer
    x = 129,988.77

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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.