Home / 331,819.18-497,413.42-211,538.57

Finding the Fourth Proportional to 331,819.18, 497,413.42 and 211,538.57

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Solution

The fourth proportional to 331,819.18, 497,413.42 and 211,538.57 is: 317,106.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,819.18 : 497,413.42 = 211,538.57 : x
  2. Step 2: Convert to fraction form
    331,819.18/497,413.42 = 211,538.57/x
  3. Step 3: Cross multiply
    331,819.18x = 497,413.42 × 211,538.57
  4. Step 4: Simplify right side
    331,819.18x = 105,222,120,549.70
  5. Step 5: Solve for x
    x = 105,222,120,549.70/331,819.18
  6. Step 6: Final answer
    x = 317,106.81

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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.