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Finding the Fourth Proportional to 281,322.60, 388,159.94 and 166,543.56

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Solution

The fourth proportional to 281,322.60, 388,159.94 and 166,543.56 is: 229,791.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,322.60 : 388,159.94 = 166,543.56 : x
  2. Step 2: Convert to fraction form
    281,322.60/388,159.94 = 166,543.56/x
  3. Step 3: Cross multiply
    281,322.60x = 388,159.94 × 166,543.56
  4. Step 4: Simplify right side
    281,322.60x = 64,645,538,256.99
  5. Step 5: Solve for x
    x = 64,645,538,256.99/281,322.60
  6. Step 6: Final answer
    x = 229,791.49

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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.