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Finding the Fourth Proportional to 340,961.25, 470,529.81 and 188,004.90

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Solution

The fourth proportional to 340,961.25, 470,529.81 and 188,004.90 is: 259,448.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,961.25 : 470,529.81 = 188,004.90 : x
  2. Step 2: Convert to fraction form
    340,961.25/470,529.81 = 188,004.90/x
  3. Step 3: Cross multiply
    340,961.25x = 470,529.81 × 188,004.90
  4. Step 4: Simplify right side
    340,961.25x = 88,461,909,876.07
  5. Step 5: Solve for x
    x = 88,461,909,876.07/340,961.25
  6. Step 6: Final answer
    x = 259,448.57

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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.