Finding the Fourth Proportional to 211,184.82, 316,901.97 and 78,158.52
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Solution
The fourth proportional to 211,184.82, 316,901.97 and 78,158.52 is: 117,283.95
Step by Step Solution
- Step 1: Write the proportion equation
211,184.82 : 316,901.97 = 78,158.52 : x - Step 2: Convert to fraction form
211,184.82/316,901.97 = 78,158.52/x - Step 3: Cross multiply
211,184.82x = 316,901.97 × 78,158.52 - Step 4: Simplify right side
211,184.82x = 24,768,588,960.28 - Step 5: Solve for x
x = 24,768,588,960.28/211,184.82 - Step 6: Final answer
x = 117,283.95
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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.