Home / 260,450.37-390,690.68-100,527.21

Finding the Fourth Proportional to 260,450.37, 390,690.68 and 100,527.21

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Solution

The fourth proportional to 260,450.37, 390,690.68 and 100,527.21 is: 150,796.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,450.37 : 390,690.68 = 100,527.21 : x
  2. Step 2: Convert to fraction form
    260,450.37/390,690.68 = 100,527.21/x
  3. Step 3: Cross multiply
    260,450.37x = 390,690.68 × 100,527.21
  4. Step 4: Simplify right side
    260,450.37x = 39,275,044,033.40
  5. Step 5: Solve for x
    x = 39,275,044,033.40/260,450.37
  6. Step 6: Final answer
    x = 150,796.65

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1.5x scale

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.