Home / 248,086.40-371,719.20-142,721.60

Finding the Fourth Proportional to 248,086.40, 371,719.20 and 142,721.60

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Solution

The fourth proportional to 248,086.40, 371,719.20 and 142,721.60 is: 213,846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,086.40 : 371,719.20 = 142,721.60 : x
  2. Step 2: Convert to fraction form
    248,086.40/371,719.20 = 142,721.60/x
  3. Step 3: Cross multiply
    248,086.40x = 371,719.20 × 142,721.60
  4. Step 4: Simplify right side
    248,086.40x = 53,052,358,974.72
  5. Step 5: Solve for x
    x = 53,052,358,974.72/248,086.40
  6. Step 6: Final answer
    x = 213,846.30

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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.