Home / 388,914.40-582,205.20-231,061.60

Finding the Fourth Proportional to 388,914.40, 582,205.20 and 231,061.60

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Solution

The fourth proportional to 388,914.40, 582,205.20 and 231,061.60 is: 345,899.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,914.40 : 582,205.20 = 231,061.60 : x
  2. Step 2: Convert to fraction form
    388,914.40/582,205.20 = 231,061.60/x
  3. Step 3: Cross multiply
    388,914.40x = 582,205.20 × 231,061.60
  4. Step 4: Simplify right side
    388,914.40x = 134,525,265,040.32
  5. Step 5: Solve for x
    x = 134,525,265,040.32/388,914.40
  6. Step 6: Final answer
    x = 345,899.42

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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.