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Finding the Fourth Proportional to 243,668.82, 335,954.67 and 157,482.81

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Solution

The fourth proportional to 243,668.82, 335,954.67 and 157,482.81 is: 217,127.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,668.82 : 335,954.67 = 157,482.81 : x
  2. Step 2: Convert to fraction form
    243,668.82/335,954.67 = 157,482.81/x
  3. Step 3: Cross multiply
    243,668.82x = 335,954.67 × 157,482.81
  4. Step 4: Simplify right side
    243,668.82x = 52,907,085,464.22
  5. Step 5: Solve for x
    x = 52,907,085,464.22/243,668.82
  6. Step 6: Final answer
    x = 217,127.02

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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.