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Finding the Fourth Proportional to 351,287.69, 526,871.59 and 126,603.41

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Solution

The fourth proportional to 351,287.69, 526,871.59 and 126,603.41 is: 189,883.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,287.69 : 526,871.59 = 126,603.41 : x
  2. Step 2: Convert to fraction form
    351,287.69/526,871.59 = 126,603.41/x
  3. Step 3: Cross multiply
    351,287.69x = 526,871.59 × 126,603.41
  4. Step 4: Simplify right side
    351,287.69x = 66,703,736,975.26
  5. Step 5: Solve for x
    x = 66,703,736,975.26/351,287.69
  6. Step 6: Final answer
    x = 189,883.51

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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.