Home / 260,594.45-390,895.79-102,821.54

Finding the Fourth Proportional to 260,594.45, 390,895.79 and 102,821.54

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Solution

The fourth proportional to 260,594.45, 390,895.79 and 102,821.54 is: 154,233.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,594.45 : 390,895.79 = 102,821.54 : x
  2. Step 2: Convert to fraction form
    260,594.45/390,895.79 = 102,821.54/x
  3. Step 3: Cross multiply
    260,594.45x = 390,895.79 × 102,821.54
  4. Step 4: Simplify right side
    260,594.45x = 40,192,504,638.73
  5. Step 5: Solve for x
    x = 40,192,504,638.73/260,594.45
  6. Step 6: Final answer
    x = 154,233.93

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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.