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Finding the Fourth Proportional to 281,872.56, 388,996.28 and 168,673.52

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Solution

The fourth proportional to 281,872.56, 388,996.28 and 168,673.52 is: 232,776.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,872.56 : 388,996.28 = 168,673.52 : x
  2. Step 2: Convert to fraction form
    281,872.56/388,996.28 = 168,673.52/x
  3. Step 3: Cross multiply
    281,872.56x = 388,996.28 × 168,673.52
  4. Step 4: Simplify right side
    281,872.56x = 65,613,371,814.51
  5. Step 5: Solve for x
    x = 65,613,371,814.51/281,872.56
  6. Step 6: Final answer
    x = 232,776.73

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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.