Finding the Fourth Proportional to 221,235.80, 331,853.70 and 55,023.80
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Solution
The fourth proportional to 221,235.80, 331,853.70 and 55,023.80 is: 82,535.70
Step by Step Solution
- Step 1: Write the proportion equation
221,235.80 : 331,853.70 = 55,023.80 : x - Step 2: Convert to fraction form
221,235.80/331,853.70 = 55,023.80/x - Step 3: Cross multiply
221,235.80x = 331,853.70 × 55,023.80 - Step 4: Simplify right side
221,235.80x = 18,259,851,618.06 - Step 5: Solve for x
x = 18,259,851,618.06/221,235.80 - Step 6: Final answer
x = 82,535.70
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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.