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Finding the Fourth Proportional to 248,337.72, 342,707.58 and 135,161.64

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Solution

The fourth proportional to 248,337.72, 342,707.58 and 135,161.64 is: 186,523.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,337.72 : 342,707.58 = 135,161.64 : x
  2. Step 2: Convert to fraction form
    248,337.72/342,707.58 = 135,161.64/x
  3. Step 3: Cross multiply
    248,337.72x = 342,707.58 × 135,161.64
  4. Step 4: Simplify right side
    248,337.72x = 46,320,918,553.23
  5. Step 5: Solve for x
    x = 46,320,918,553.23/248,337.72
  6. Step 6: Final answer
    x = 186,523.89

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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.