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Finding the Fourth Proportional to 222,056, 306,437.28 and 121,454

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Solution

The fourth proportional to 222,056, 306,437.28 and 121,454 is: 167,606.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,056 : 306,437.28 = 121,454 : x
  2. Step 2: Convert to fraction form
    222,056/306,437.28 = 121,454/x
  3. Step 3: Cross multiply
    222,056x = 306,437.28 × 121,454
  4. Step 4: Simplify right side
    222,056x = 37,218,033,405.12
  5. Step 5: Solve for x
    x = 37,218,033,405.12/222,056
  6. Step 6: Final answer
    x = 167,606.52

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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.