Home / 221,336.10-305,471.25-135,277.38

Finding the Fourth Proportional to 221,336.10, 305,471.25 and 135,277.38

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Solution

The fourth proportional to 221,336.10, 305,471.25 and 135,277.38 is: 186,699.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,336.10 : 305,471.25 = 135,277.38 : x
  2. Step 2: Convert to fraction form
    221,336.10/305,471.25 = 135,277.38/x
  3. Step 3: Cross multiply
    221,336.10x = 305,471.25 × 135,277.38
  4. Step 4: Simplify right side
    221,336.10x = 41,323,350,365.33
  5. Step 5: Solve for x
    x = 41,323,350,365.33/221,336.10
  6. Step 6: Final answer
    x = 186,699.55

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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.