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Finding the Fourth Proportional to 248,740.56, 343,317.42 and 158,078.88

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Solution

The fourth proportional to 248,740.56, 343,317.42 and 158,078.88 is: 218,184.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,740.56 : 343,317.42 = 158,078.88 : x
  2. Step 2: Convert to fraction form
    248,740.56/343,317.42 = 158,078.88/x
  3. Step 3: Cross multiply
    248,740.56x = 343,317.42 × 158,078.88
  4. Step 4: Simplify right side
    248,740.56x = 54,271,233,238.09
  5. Step 5: Solve for x
    x = 54,271,233,238.09/248,740.56
  6. Step 6: Final answer
    x = 218,184.09

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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.