Home / 260,821.70-393,243.96-259,202.47

Finding the Fourth Proportional to 260,821.70, 393,243.96 and 259,202.47

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Solution

The fourth proportional to 260,821.70, 393,243.96 and 259,202.47 is: 390,802.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,821.70 : 393,243.96 = 259,202.47 : x
  2. Step 2: Convert to fraction form
    260,821.70/393,243.96 = 259,202.47/x
  3. Step 3: Cross multiply
    260,821.70x = 393,243.96 × 259,202.47
  4. Step 4: Simplify right side
    260,821.70x = 101,929,803,789.46
  5. Step 5: Solve for x
    x = 101,929,803,789.46/260,821.70
  6. Step 6: Final answer
    x = 390,802.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.