Finding the Fourth Proportional to 211,220.08, 316,900.88 and 69,071.92
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Solution
The fourth proportional to 211,220.08, 316,900.88 and 69,071.92 is: 103,631.02
Step by Step Solution
- Step 1: Write the proportion equation
211,220.08 : 316,900.88 = 69,071.92 : x - Step 2: Convert to fraction form
211,220.08/316,900.88 = 69,071.92/x - Step 3: Cross multiply
211,220.08x = 316,900.88 × 69,071.92 - Step 4: Simplify right side
211,220.08x = 21,888,952,231.29 - Step 5: Solve for x
x = 21,888,952,231.29/211,220.08 - Step 6: Final answer
x = 103,631.02
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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.