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Finding the Fourth Proportional to 242,891.66, 335,194.80 and 135,450.16

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Solution

The fourth proportional to 242,891.66, 335,194.80 and 135,450.16 is: 186,923.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,891.66 : 335,194.80 = 135,450.16 : x
  2. Step 2: Convert to fraction form
    242,891.66/335,194.80 = 135,450.16/x
  3. Step 3: Cross multiply
    242,891.66x = 335,194.80 × 135,450.16
  4. Step 4: Simplify right side
    242,891.66x = 45,402,187,615.19
  5. Step 5: Solve for x
    x = 45,402,187,615.19/242,891.66
  6. Step 6: Final answer
    x = 186,923.62

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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.