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Finding the Fourth Proportional to 303,374.40, 418,653.90 and 167,409.60

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Solution

The fourth proportional to 303,374.40, 418,653.90 and 167,409.60 is: 231,023.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,374.40 : 418,653.90 = 167,409.60 : x
  2. Step 2: Convert to fraction form
    303,374.40/418,653.90 = 167,409.60/x
  3. Step 3: Cross multiply
    303,374.40x = 418,653.90 × 167,409.60
  4. Step 4: Simplify right side
    303,374.40x = 70,086,681,937.44
  5. Step 5: Solve for x
    x = 70,086,681,937.44/303,374.40
  6. Step 6: Final answer
    x = 231,023.72

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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.