Home / 230,185.12-345,213.36-145,819.84

Finding the Fourth Proportional to 230,185.12, 345,213.36 and 145,819.84

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Solution

The fourth proportional to 230,185.12, 345,213.36 and 145,819.84 is: 218,689.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,185.12 : 345,213.36 = 145,819.84 : x
  2. Step 2: Convert to fraction form
    230,185.12/345,213.36 = 145,819.84/x
  3. Step 3: Cross multiply
    230,185.12x = 345,213.36 × 145,819.84
  4. Step 4: Simplify right side
    230,185.12x = 50,338,956,921.06
  5. Step 5: Solve for x
    x = 50,338,956,921.06/230,185.12
  6. Step 6: Final answer
    x = 218,689.01

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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.