Finding the Fourth Proportional to 221,029.02, 305,020.08 and 120,427.02
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Solution
The fourth proportional to 221,029.02, 305,020.08 and 120,427.02 is: 166,189.31
Step by Step Solution
- Step 1: Write the proportion equation
221,029.02 : 305,020.08 = 120,427.02 : x - Step 2: Convert to fraction form
221,029.02/305,020.08 = 120,427.02/x - Step 3: Cross multiply
221,029.02x = 305,020.08 × 120,427.02 - Step 4: Simplify right side
221,029.02x = 36,732,659,274.56 - Step 5: Solve for x
x = 36,732,659,274.56/221,029.02 - Step 6: Final answer
x = 166,189.31
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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.