Home / 421,016.25-580,995.64-230,025.54

Finding the Fourth Proportional to 421,016.25, 580,995.64 and 230,025.54

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Solution

The fourth proportional to 421,016.25, 580,995.64 and 230,025.54 is: 317,431.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,016.25 : 580,995.64 = 230,025.54 : x
  2. Step 2: Convert to fraction form
    421,016.25/580,995.64 = 230,025.54/x
  3. Step 3: Cross multiply
    421,016.25x = 580,995.64 × 230,025.54
  4. Step 4: Simplify right side
    421,016.25x = 133,643,835,828.65
  5. Step 5: Solve for x
    x = 133,643,835,828.65/421,016.25
  6. Step 6: Final answer
    x = 317,431.54

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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.