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Finding the Fourth Proportional to 259,291.60, 388,476.60 and 222,427.60

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Solution

The fourth proportional to 259,291.60, 388,476.60 and 222,427.60 is: 333,246.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,291.60 : 388,476.60 = 222,427.60 : x
  2. Step 2: Convert to fraction form
    259,291.60/388,476.60 = 222,427.60/x
  3. Step 3: Cross multiply
    259,291.60x = 388,476.60 × 222,427.60
  4. Step 4: Simplify right side
    259,291.60x = 86,407,917,794.16
  5. Step 5: Solve for x
    x = 86,407,917,794.16/259,291.60
  6. Step 6: Final answer
    x = 333,246.11

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1.5x scale

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.