Home / 388,619.75-582,679.13-163,920.08

Finding the Fourth Proportional to 388,619.75, 582,679.13 and 163,920.08

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Solution

The fourth proportional to 388,619.75, 582,679.13 and 163,920.08 is: 245,774.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,619.75 : 582,679.13 = 163,920.08 : x
  2. Step 2: Convert to fraction form
    388,619.75/582,679.13 = 163,920.08/x
  3. Step 3: Cross multiply
    388,619.75x = 582,679.13 × 163,920.08
  4. Step 4: Simplify right side
    388,619.75x = 95,512,809,603.93
  5. Step 5: Solve for x
    x = 95,512,809,603.93/388,619.75
  6. Step 6: Final answer
    x = 245,774.46

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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.