Home / 421,942.11-582,283.73-240,663.21

Finding the Fourth Proportional to 421,942.11, 582,283.73 and 240,663.21

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Solution

The fourth proportional to 421,942.11, 582,283.73 and 240,663.21 is: 332,117.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,942.11 : 582,283.73 = 240,663.21 : x
  2. Step 2: Convert to fraction form
    421,942.11/582,283.73 = 240,663.21/x
  3. Step 3: Cross multiply
    421,942.11x = 582,283.73 × 240,663.21
  4. Step 4: Simplify right side
    421,942.11x = 140,134,270,389.26
  5. Step 5: Solve for x
    x = 140,134,270,389.26/421,942.11
  6. Step 6: Final answer
    x = 332,117.29

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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.