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Finding the Fourth Proportional to 248,978.79, 343,619.78 and 141,564.92

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Solution

The fourth proportional to 248,978.79, 343,619.78 and 141,564.92 is: 195,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,978.79 : 343,619.78 = 141,564.92 : x
  2. Step 2: Convert to fraction form
    248,978.79/343,619.78 = 141,564.92/x
  3. Step 3: Cross multiply
    248,978.79x = 343,619.78 × 141,564.92
  4. Step 4: Simplify right side
    248,978.79x = 48,644,504,240.19
  5. Step 5: Solve for x
    x = 48,644,504,240.19/248,978.79
  6. Step 6: Final answer
    x = 195,376.10

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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.