Home / 304,988.23-420,877.70-169,019.37

Finding the Fourth Proportional to 304,988.23, 420,877.70 and 169,019.37

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Solution

The fourth proportional to 304,988.23, 420,877.70 and 169,019.37 is: 233,243.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,988.23 : 420,877.70 = 169,019.37 : x
  2. Step 2: Convert to fraction form
    304,988.23/420,877.70 = 169,019.37/x
  3. Step 3: Cross multiply
    304,988.23x = 420,877.70 × 169,019.37
  4. Step 4: Simplify right side
    304,988.23x = 71,136,481,596.66
  5. Step 5: Solve for x
    x = 71,136,481,596.66/304,988.23
  6. Step 6: Final answer
    x = 233,243.37

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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.