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Finding the Fourth Proportional to 236,949, 355,479.66 and 70,741.32

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Solution

The fourth proportional to 236,949, 355,479.66 and 70,741.32 is: 106,128.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,949 : 355,479.66 = 70,741.32 : x
  2. Step 2: Convert to fraction form
    236,949/355,479.66 = 70,741.32/x
  3. Step 3: Cross multiply
    236,949x = 355,479.66 × 70,741.32
  4. Step 4: Simplify right side
    236,949x = 25,147,100,381.55
  5. Step 5: Solve for x
    x = 25,147,100,381.55/236,949
  6. Step 6: Final answer
    x = 106,128.75

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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.