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Finding the Fourth Proportional to 253,679.32, 350,080.03 and 153,057.88

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Solution

The fourth proportional to 253,679.32, 350,080.03 and 153,057.88 is: 211,221.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,679.32 : 350,080.03 = 153,057.88 : x
  2. Step 2: Convert to fraction form
    253,679.32/350,080.03 = 153,057.88/x
  3. Step 3: Cross multiply
    253,679.32x = 350,080.03 × 153,057.88
  4. Step 4: Simplify right side
    253,679.32x = 53,582,507,222.14
  5. Step 5: Solve for x
    x = 53,582,507,222.14/253,679.32
  6. Step 6: Final answer
    x = 211,221.42

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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.