Home / 259,314.40-388,453.20-148,376.80

Finding the Fourth Proportional to 259,314.40, 388,453.20 and 148,376.80

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Solution

The fourth proportional to 259,314.40, 388,453.20 and 148,376.80 is: 222,268.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,314.40 : 388,453.20 = 148,376.80 : x
  2. Step 2: Convert to fraction form
    259,314.40/388,453.20 = 148,376.80/x
  3. Step 3: Cross multiply
    259,314.40x = 388,453.20 × 148,376.80
  4. Step 4: Simplify right side
    259,314.40x = 57,637,442,765.76
  5. Step 5: Solve for x
    x = 57,637,442,765.76/259,314.40
  6. Step 6: Final answer
    x = 222,268.58

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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.