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Finding the Fourth Proportional to 223,393.33, 308,284.85 and 121,419.02

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Solution

The fourth proportional to 223,393.33, 308,284.85 and 121,419.02 is: 167,559.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,393.33 : 308,284.85 = 121,419.02 : x
  2. Step 2: Convert to fraction form
    223,393.33/308,284.85 = 121,419.02/x
  3. Step 3: Cross multiply
    223,393.33x = 308,284.85 × 121,419.02
  4. Step 4: Simplify right side
    223,393.33x = 37,431,642,219.33
  5. Step 5: Solve for x
    x = 37,431,642,219.33/223,393.33
  6. Step 6: Final answer
    x = 167,559.36

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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.