Home / 345,449.06-518,173.60-134,939.38

Finding the Fourth Proportional to 345,449.06, 518,173.60 and 134,939.38

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Solution

The fourth proportional to 345,449.06, 518,173.60 and 134,939.38 is: 202,409.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,449.06 : 518,173.60 = 134,939.38 : x
  2. Step 2: Convert to fraction form
    345,449.06/518,173.60 = 134,939.38/x
  3. Step 3: Cross multiply
    345,449.06x = 518,173.60 × 134,939.38
  4. Step 4: Simplify right side
    345,449.06x = 69,922,024,316.37
  5. Step 5: Solve for x
    x = 69,922,024,316.37/345,449.06
  6. Step 6: Final answer
    x = 202,409.07

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1.5x scale

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.