Finding the Fourth Proportional to 143,824.02, 215,735.86 and 38,642.99
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Solution
The fourth proportional to 143,824.02, 215,735.86 and 38,642.99 is: 57,964.44
Step by Step Solution
- Step 1: Write the proportion equation
143,824.02 : 215,735.86 = 38,642.99 : x - Step 2: Convert to fraction form
143,824.02/215,735.86 = 38,642.99/x - Step 3: Cross multiply
143,824.02x = 215,735.86 × 38,642.99 - Step 4: Simplify right side
143,824.02x = 8,336,678,680.62 - Step 5: Solve for x
x = 8,336,678,680.62/143,824.02 - Step 6: Final answer
x = 57,964.44
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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.