Home / 331,080.78-456,573.87-222,430.62

Finding the Fourth Proportional to 331,080.78, 456,573.87 and 222,430.62

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Solution

The fourth proportional to 331,080.78, 456,573.87 and 222,430.62 is: 306,740.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,080.78 : 456,573.87 = 222,430.62 : x
  2. Step 2: Convert to fraction form
    331,080.78/456,573.87 = 222,430.62/x
  3. Step 3: Cross multiply
    331,080.78x = 456,573.87 × 222,430.62
  4. Step 4: Simplify right side
    331,080.78x = 101,556,008,979.90
  5. Step 5: Solve for x
    x = 101,556,008,979.90/331,080.78
  6. Step 6: Final answer
    x = 306,740.88

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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.