Finding the Fourth Proportional to 203,643.88, 305,343.04 and 91,303.80
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Solution
The fourth proportional to 203,643.88, 305,343.04 and 91,303.80 is: 136,900.65
Step by Step Solution
- Step 1: Write the proportion equation
203,643.88 : 305,343.04 = 91,303.80 : x - Step 2: Convert to fraction form
203,643.88/305,343.04 = 91,303.80/x - Step 3: Cross multiply
203,643.88x = 305,343.04 × 91,303.80 - Step 4: Simplify right side
203,643.88x = 27,878,979,855.55 - Step 5: Solve for x
x = 27,878,979,855.55/203,643.88 - Step 6: Final answer
x = 136,900.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.