Home / 259,289.46-388,652.94-132,756.12

Finding the Fourth Proportional to 259,289.46, 388,652.94 and 132,756.12

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Solution

The fourth proportional to 259,289.46, 388,652.94 and 132,756.12 is: 198,990.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,289.46 : 388,652.94 = 132,756.12 : x
  2. Step 2: Convert to fraction form
    259,289.46/388,652.94 = 132,756.12/x
  3. Step 3: Cross multiply
    259,289.46x = 388,652.94 × 132,756.12
  4. Step 4: Simplify right side
    259,289.46x = 51,596,056,340.99
  5. Step 5: Solve for x
    x = 51,596,056,340.99/259,289.46
  6. Step 6: Final answer
    x = 198,990.18

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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.