Home / 220,969.38-331,599.35-121,199.50

Finding the Fourth Proportional to 220,969.38, 331,599.35 and 121,199.50

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Solution

The fourth proportional to 220,969.38, 331,599.35 and 121,199.50 is: 181,878.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,969.38 : 331,599.35 = 121,199.50 : x
  2. Step 2: Convert to fraction form
    220,969.38/331,599.35 = 121,199.50/x
  3. Step 3: Cross multiply
    220,969.38x = 331,599.35 × 121,199.50
  4. Step 4: Simplify right side
    220,969.38x = 40,189,675,420.33
  5. Step 5: Solve for x
    x = 40,189,675,420.33/220,969.38
  6. Step 6: Final answer
    x = 181,878.93

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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.