Finding the Fourth Proportional to 211,215.84, 316,894.49 and 69,067.68
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Solution
The fourth proportional to 211,215.84, 316,894.49 and 69,067.68 is: 103,624.65
Step by Step Solution
- Step 1: Write the proportion equation
211,215.84 : 316,894.49 = 69,067.68 : x - Step 2: Convert to fraction form
211,215.84/316,894.49 = 69,067.68/x - Step 3: Cross multiply
211,215.84x = 316,894.49 × 69,067.68 - Step 4: Simplify right side
211,215.84x = 21,887,167,229.08 - Step 5: Solve for x
x = 21,887,167,229.08/211,215.84 - Step 6: Final answer
x = 103,624.65
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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.