Home / 281,562.58-388,556.34-154,238.14

Finding the Fourth Proportional to 281,562.58, 388,556.34 and 154,238.14

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Solution

The fourth proportional to 281,562.58, 388,556.34 and 154,238.14 is: 212,848.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,562.58 : 388,556.34 = 154,238.14 : x
  2. Step 2: Convert to fraction form
    281,562.58/388,556.34 = 154,238.14/x
  3. Step 3: Cross multiply
    281,562.58x = 388,556.34 × 154,238.14
  4. Step 4: Simplify right side
    281,562.58x = 59,930,207,166.81
  5. Step 5: Solve for x
    x = 59,930,207,166.81/281,562.58
  6. Step 6: Final answer
    x = 212,848.62

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1.5x scale

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.