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Finding the Fourth Proportional to 223,883.70, 308,959.02 and 121,907.58

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Solution

The fourth proportional to 223,883.70, 308,959.02 and 121,907.58 is: 168,232.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,883.70 : 308,959.02 = 121,907.58 : x
  2. Step 2: Convert to fraction form
    223,883.70/308,959.02 = 121,907.58/x
  3. Step 3: Cross multiply
    223,883.70x = 308,959.02 × 121,907.58
  4. Step 4: Simplify right side
    223,883.70x = 37,664,446,447.37
  5. Step 5: Solve for x
    x = 37,664,446,447.37/223,883.70
  6. Step 6: Final answer
    x = 168,232.20

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1.5x scale

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.