Home / 248,715.88-343,226.78-135,538.60

Finding the Fourth Proportional to 248,715.88, 343,226.78 and 135,538.60

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Solution

The fourth proportional to 248,715.88, 343,226.78 and 135,538.60 is: 187,042.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,715.88 : 343,226.78 = 135,538.60 : x
  2. Step 2: Convert to fraction form
    248,715.88/343,226.78 = 135,538.60/x
  3. Step 3: Cross multiply
    248,715.88x = 343,226.78 × 135,538.60
  4. Step 4: Simplify right side
    248,715.88x = 46,520,477,243.71
  5. Step 5: Solve for x
    x = 46,520,477,243.71/248,715.88
  6. Step 6: Final answer
    x = 187,042.65

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1.5x scale

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.