Home / 248,456.24-342,870-135,279.44

Finding the Fourth Proportional to 248,456.24, 342,870 and 135,279.44

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Solution

The fourth proportional to 248,456.24, 342,870 and 135,279.44 is: 186,685.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,456.24 : 342,870 = 135,279.44 : x
  2. Step 2: Convert to fraction form
    248,456.24/342,870 = 135,279.44/x
  3. Step 3: Cross multiply
    248,456.24x = 342,870 × 135,279.44
  4. Step 4: Simplify right side
    248,456.24x = 46,383,261,592.80
  5. Step 5: Solve for x
    x = 46,383,261,592.80/248,456.24
  6. Step 6: Final answer
    x = 186,685.84

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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.