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Finding the Fourth Proportional to 234,987.70, 324,282 and 127,556.86

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Solution

The fourth proportional to 234,987.70, 324,282 and 127,556.86 is: 176,027.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,987.70 : 324,282 = 127,556.86 : x
  2. Step 2: Convert to fraction form
    234,987.70/324,282 = 127,556.86/x
  3. Step 3: Cross multiply
    234,987.70x = 324,282 × 127,556.86
  4. Step 4: Simplify right side
    234,987.70x = 41,364,393,674.52
  5. Step 5: Solve for x
    x = 41,364,393,674.52/234,987.70
  6. Step 6: Final answer
    x = 176,027.91

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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.