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Finding the Fourth Proportional to 242,947, 335,250.66 and 139,584.52

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Solution

The fourth proportional to 242,947, 335,250.66 and 139,584.52 is: 192,617.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,947 : 335,250.66 = 139,584.52 : x
  2. Step 2: Convert to fraction form
    242,947/335,250.66 = 139,584.52/x
  3. Step 3: Cross multiply
    242,947x = 335,250.66 × 139,584.52
  4. Step 4: Simplify right side
    242,947x = 46,795,802,455.78
  5. Step 5: Solve for x
    x = 46,795,802,455.78/242,947
  6. Step 6: Final answer
    x = 192,617.33

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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.