Home / 259,350.40-388,588.20-214,735.60

Finding the Fourth Proportional to 259,350.40, 388,588.20 and 214,735.60

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Solution

The fourth proportional to 259,350.40, 388,588.20 and 214,735.60 is: 321,741.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,350.40 : 388,588.20 = 214,735.60 : x
  2. Step 2: Convert to fraction form
    259,350.40/388,588.20 = 214,735.60/x
  3. Step 3: Cross multiply
    259,350.40x = 388,588.20 × 214,735.60
  4. Step 4: Simplify right side
    259,350.40x = 83,443,720,279.92
  5. Step 5: Solve for x
    x = 83,443,720,279.92/259,350.40
  6. Step 6: Final answer
    x = 321,741.24

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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.