Home / 248,389.28-342,768.48-135,209.60

Finding the Fourth Proportional to 248,389.28, 342,768.48 and 135,209.60

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Solution

The fourth proportional to 248,389.28, 342,768.48 and 135,209.60 is: 186,584.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,389.28 : 342,768.48 = 135,209.60 : x
  2. Step 2: Convert to fraction form
    248,389.28/342,768.48 = 135,209.60/x
  3. Step 3: Cross multiply
    248,389.28x = 342,768.48 × 135,209.60
  4. Step 4: Simplify right side
    248,389.28x = 46,345,589,073.41
  5. Step 5: Solve for x
    x = 46,345,589,073.41/248,389.28
  6. Step 6: Final answer
    x = 186,584.50

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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.