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Finding the Fourth Proportional to 203,376.68, 305,148.56 and 89,465.84

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Solution

The fourth proportional to 203,376.68, 305,148.56 and 89,465.84 is: 134,235.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,376.68 : 305,148.56 = 89,465.84 : x
  2. Step 2: Convert to fraction form
    203,376.68/305,148.56 = 89,465.84/x
  3. Step 3: Cross multiply
    203,376.68x = 305,148.56 × 89,465.84
  4. Step 4: Simplify right side
    203,376.68x = 27,300,372,245.19
  5. Step 5: Solve for x
    x = 27,300,372,245.19/203,376.68
  6. Step 6: Final answer
    x = 134,235.51

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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.