Home / 220,926.29-305,126.60-149,181.75

Finding the Fourth Proportional to 220,926.29, 305,126.60 and 149,181.75

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Solution

The fourth proportional to 220,926.29, 305,126.60 and 149,181.75 is: 206,038.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,926.29 : 305,126.60 = 149,181.75 : x
  2. Step 2: Convert to fraction form
    220,926.29/305,126.60 = 149,181.75/x
  3. Step 3: Cross multiply
    220,926.29x = 305,126.60 × 149,181.75
  4. Step 4: Simplify right side
    220,926.29x = 45,519,319,413.64
  5. Step 5: Solve for x
    x = 45,519,319,413.64/220,926.29
  6. Step 6: Final answer
    x = 206,038.50

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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.