Home / 220,241.36-303,860.79-123,431.06

Finding the Fourth Proportional to 220,241.36, 303,860.79 and 123,431.06

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Solution

The fourth proportional to 220,241.36, 303,860.79 and 123,431.06 is: 170,294.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,241.36 : 303,860.79 = 123,431.06 : x
  2. Step 2: Convert to fraction form
    220,241.36/303,860.79 = 123,431.06/x
  3. Step 3: Cross multiply
    220,241.36x = 303,860.79 × 123,431.06
  4. Step 4: Simplify right side
    220,241.36x = 37,505,860,161.79
  5. Step 5: Solve for x
    x = 37,505,860,161.79/220,241.36
  6. Step 6: Final answer
    x = 170,294.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.