Home / 345,449.23-518,173.83-134,939.54

Finding the Fourth Proportional to 345,449.23, 518,173.83 and 134,939.54

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Solution

The fourth proportional to 345,449.23, 518,173.83 and 134,939.54 is: 202,409.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,449.23 : 518,173.83 = 134,939.54 : x
  2. Step 2: Convert to fraction form
    345,449.23/518,173.83 = 134,939.54/x
  3. Step 3: Cross multiply
    345,449.23x = 518,173.83 × 134,939.54
  4. Step 4: Simplify right side
    345,449.23x = 69,922,139,555.67
  5. Step 5: Solve for x
    x = 69,922,139,555.67/345,449.23
  6. Step 6: Final answer
    x = 202,409.31

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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.