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Finding the Fourth Proportional to 235,484.21, 324,976.77 and 134,901.65

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Solution

The fourth proportional to 235,484.21, 324,976.77 and 134,901.65 is: 186,169.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,484.21 : 324,976.77 = 134,901.65 : x
  2. Step 2: Convert to fraction form
    235,484.21/324,976.77 = 134,901.65/x
  3. Step 3: Cross multiply
    235,484.21x = 324,976.77 × 134,901.65
  4. Step 4: Simplify right side
    235,484.21x = 43,839,902,484.67
  5. Step 5: Solve for x
    x = 43,839,902,484.67/235,484.21
  6. Step 6: Final answer
    x = 186,169.18

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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.