Home / 248,279.22-342,626.49-135,102.78

Finding the Fourth Proportional to 248,279.22, 342,626.49 and 135,102.78

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Solution

The fourth proportional to 248,279.22, 342,626.49 and 135,102.78 is: 186,442.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,279.22 : 342,626.49 = 135,102.78 : x
  2. Step 2: Convert to fraction form
    248,279.22/342,626.49 = 135,102.78/x
  3. Step 3: Cross multiply
    248,279.22x = 342,626.49 × 135,102.78
  4. Step 4: Simplify right side
    248,279.22x = 46,289,791,300.64
  5. Step 5: Solve for x
    x = 46,289,791,300.64/248,279.22
  6. Step 6: Final answer
    x = 186,442.47

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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.