Home / 216,208.22-298,310.48-131,308.88

Finding the Fourth Proportional to 216,208.22, 298,310.48 and 131,308.88

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Solution

The fourth proportional to 216,208.22, 298,310.48 and 131,308.88 is: 181,171.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,208.22 : 298,310.48 = 131,308.88 : x
  2. Step 2: Convert to fraction form
    216,208.22/298,310.48 = 131,308.88/x
  3. Step 3: Cross multiply
    216,208.22x = 298,310.48 × 131,308.88
  4. Step 4: Simplify right side
    216,208.22x = 39,170,815,021.06
  5. Step 5: Solve for x
    x = 39,170,815,021.06/216,208.22
  6. Step 6: Final answer
    x = 181,171.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.