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Finding the Fourth Proportional to 248,783.70, 343,321.62 and 141,353.88

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Solution

The fourth proportional to 248,783.70, 343,321.62 and 141,353.88 is: 195,068.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,783.70 : 343,321.62 = 141,353.88 : x
  2. Step 2: Convert to fraction form
    248,783.70/343,321.62 = 141,353.88/x
  3. Step 3: Cross multiply
    248,783.70x = 343,321.62 × 141,353.88
  4. Step 4: Simplify right side
    248,783.70x = 48,529,843,074.89
  5. Step 5: Solve for x
    x = 48,529,843,074.89/248,783.70
  6. Step 6: Final answer
    x = 195,068.42

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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.