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Finding the Fourth Proportional to 248,357.67, 372,277.17 and 115,128.06

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Solution

The fourth proportional to 248,357.67, 372,277.17 and 115,128.06 is: 172,571.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,357.67 : 372,277.17 = 115,128.06 : x
  2. Step 2: Convert to fraction form
    248,357.67/372,277.17 = 115,128.06/x
  3. Step 3: Cross multiply
    248,357.67x = 372,277.17 × 115,128.06
  4. Step 4: Simplify right side
    248,357.67x = 42,859,548,364.39
  5. Step 5: Solve for x
    x = 42,859,548,364.39/248,357.67
  6. Step 6: Final answer
    x = 172,571.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.