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Finding the Fourth Proportional to 304,841, 420,674.90 and 168,871.94

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Solution

The fourth proportional to 304,841, 420,674.90 and 168,871.94 is: 233,040.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,841 : 420,674.90 = 168,871.94 : x
  2. Step 2: Convert to fraction form
    304,841/420,674.90 = 168,871.94/x
  3. Step 3: Cross multiply
    304,841x = 420,674.90 × 168,871.94
  4. Step 4: Simplify right side
    304,841x = 71,040,186,472.31
  5. Step 5: Solve for x
    x = 71,040,186,472.31/304,841
  6. Step 6: Final answer
    x = 233,040.13

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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.