Finding the Fourth Proportional to 236,855.84, 326,857.12 and 129,423.42
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Solution
The fourth proportional to 236,855.84, 326,857.12 and 129,423.42 is: 178,602.17
Step by Step Solution
- Step 1: Write the proportion equation
236,855.84 : 326,857.12 = 129,423.42 : x - Step 2: Convert to fraction form
236,855.84/326,857.12 = 129,423.42/x - Step 3: Cross multiply
236,855.84x = 326,857.12 × 129,423.42 - Step 4: Simplify right side
236,855.84x = 42,302,966,321.75 - Step 5: Solve for x
x = 42,302,966,321.75/236,855.84 - Step 6: Final answer
x = 178,602.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.