Finding the Fourth Proportional to 221,376.12, 305,533.26 and 130,741.88
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Solution
The fourth proportional to 221,376.12, 305,533.26 and 130,741.88 is: 180,444.00
Step by Step Solution
- Step 1: Write the proportion equation
221,376.12 : 305,533.26 = 130,741.88 : x - Step 2: Convert to fraction form
221,376.12/305,533.26 = 130,741.88/x - Step 3: Cross multiply
221,376.12x = 305,533.26 × 130,741.88 - Step 4: Simplify right side
221,376.12x = 39,945,992,814.93 - Step 5: Solve for x
x = 39,945,992,814.93/221,376.12 - Step 6: Final answer
x = 180,444.00
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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.