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Finding the Fourth Proportional to 139,279.84, 208,917.37 and 44,509.33

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Solution

The fourth proportional to 139,279.84, 208,917.37 and 44,509.33 is: 66,763.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,279.84 : 208,917.37 = 44,509.33 : x
  2. Step 2: Convert to fraction form
    139,279.84/208,917.37 = 44,509.33/x
  3. Step 3: Cross multiply
    139,279.84x = 208,917.37 × 44,509.33
  4. Step 4: Simplify right side
    139,279.84x = 9,298,772,164.06
  5. Step 5: Solve for x
    x = 9,298,772,164.06/139,279.84
  6. Step 6: Final answer
    x = 66,763.23

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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.