Home / 248,321.54-342,719.84-139,438.10

Finding the Fourth Proportional to 248,321.54, 342,719.84 and 139,438.10

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Solution

The fourth proportional to 248,321.54, 342,719.84 and 139,438.10 is: 192,444.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,321.54 : 342,719.84 = 139,438.10 : x
  2. Step 2: Convert to fraction form
    248,321.54/342,719.84 = 139,438.10/x
  3. Step 3: Cross multiply
    248,321.54x = 342,719.84 × 139,438.10
  4. Step 4: Simplify right side
    248,321.54x = 47,788,203,321.90
  5. Step 5: Solve for x
    x = 47,788,203,321.90/248,321.54
  6. Step 6: Final answer
    x = 192,444.86

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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.