Finding the Fourth Proportional to 143,376.99, 215,051.58 and 43,538.05
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Solution
The fourth proportional to 143,376.99, 215,051.58 and 43,538.05 is: 65,302.85
Step by Step Solution
- Step 1: Write the proportion equation
143,376.99 : 215,051.58 = 43,538.05 : x - Step 2: Convert to fraction form
143,376.99/215,051.58 = 43,538.05/x - Step 3: Cross multiply
143,376.99x = 215,051.58 × 43,538.05 - Step 4: Simplify right side
143,376.99x = 9,362,925,904.99 - Step 5: Solve for x
x = 9,362,925,904.99/143,376.99 - Step 6: Final answer
x = 65,302.85
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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.