Home / 253,021.29-379,525.89-82,242.81

Finding the Fourth Proportional to 253,021.29, 379,525.89 and 82,242.81

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Solution

The fourth proportional to 253,021.29, 379,525.89 and 82,242.81 is: 123,362.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,021.29 : 379,525.89 = 82,242.81 : x
  2. Step 2: Convert to fraction form
    253,021.29/379,525.89 = 82,242.81/x
  3. Step 3: Cross multiply
    253,021.29x = 379,525.89 × 82,242.81
  4. Step 4: Simplify right side
    253,021.29x = 31,213,273,763.72
  5. Step 5: Solve for x
    x = 31,213,273,763.72/253,021.29
  6. Step 6: Final answer
    x = 123,362.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.