Finding the Fourth Proportional to 211,163.30, 316,008.63 and 172,768.84
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Solution
The fourth proportional to 211,163.30, 316,008.63 and 172,768.84 is: 258,550.82
Step by Step Solution
- Step 1: Write the proportion equation
211,163.30 : 316,008.63 = 172,768.84 : x - Step 2: Convert to fraction form
211,163.30/316,008.63 = 172,768.84/x - Step 3: Cross multiply
211,163.30x = 316,008.63 × 172,768.84 - Step 4: Simplify right side
211,163.30x = 54,596,444,830.10 - Step 5: Solve for x
x = 54,596,444,830.10/211,163.30 - Step 6: Final answer
x = 258,550.82
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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.