Home / 248,388.28-342,767.10-135,208.60

Finding the Fourth Proportional to 248,388.28, 342,767.10 and 135,208.60

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Solution

The fourth proportional to 248,388.28, 342,767.10 and 135,208.60 is: 186,583.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,388.28 : 342,767.10 = 135,208.60 : x
  2. Step 2: Convert to fraction form
    248,388.28/342,767.10 = 135,208.60/x
  3. Step 3: Cross multiply
    248,388.28x = 342,767.10 × 135,208.60
  4. Step 4: Simplify right side
    248,388.28x = 46,345,059,717.06
  5. Step 5: Solve for x
    x = 46,345,059,717.06/248,388.28
  6. Step 6: Final answer
    x = 186,583.12

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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.