Home / 214,290.12-321,437.82-147,712.34

Finding the Fourth Proportional to 214,290.12, 321,437.82 and 147,712.34

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Solution

The fourth proportional to 214,290.12, 321,437.82 and 147,712.34 is: 221,570.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,290.12 : 321,437.82 = 147,712.34 : x
  2. Step 2: Convert to fraction form
    214,290.12/321,437.82 = 147,712.34/x
  3. Step 3: Cross multiply
    214,290.12x = 321,437.82 × 147,712.34
  4. Step 4: Simplify right side
    214,290.12x = 47,480,332,556.70
  5. Step 5: Solve for x
    x = 47,480,332,556.70/214,290.12
  6. Step 6: Final answer
    x = 221,570.33

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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.