Home / 248,756.32-343,284-135,579.04

Finding the Fourth Proportional to 248,756.32, 343,284 and 135,579.04

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Solution

The fourth proportional to 248,756.32, 343,284 and 135,579.04 is: 187,099.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,756.32 : 343,284 = 135,579.04 : x
  2. Step 2: Convert to fraction form
    248,756.32/343,284 = 135,579.04/x
  3. Step 3: Cross multiply
    248,756.32x = 343,284 × 135,579.04
  4. Step 4: Simplify right side
    248,756.32x = 46,542,115,167.36
  5. Step 5: Solve for x
    x = 46,542,115,167.36/248,756.32
  6. Step 6: Final answer
    x = 187,099.23

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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.