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Finding the Fourth Proportional to 235,484.34, 324,976.94 and 134,901.78

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Solution

The fourth proportional to 235,484.34, 324,976.94 and 134,901.78 is: 186,169.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,484.34 : 324,976.94 = 134,901.78 : x
  2. Step 2: Convert to fraction form
    235,484.34/324,976.94 = 134,901.78/x
  3. Step 3: Cross multiply
    235,484.34x = 324,976.94 × 134,901.78
  4. Step 4: Simplify right side
    235,484.34x = 43,839,966,990.44
  5. Step 5: Solve for x
    x = 43,839,966,990.44/235,484.34
  6. Step 6: Final answer
    x = 186,169.35

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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.