Finding the Fourth Proportional to 208,278.84, 312,418.26 and 58,513.08
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Solution
The fourth proportional to 208,278.84, 312,418.26 and 58,513.08 is: 87,769.62
Step by Step Solution
- Step 1: Write the proportion equation
208,278.84 : 312,418.26 = 58,513.08 : x - Step 2: Convert to fraction form
208,278.84/312,418.26 = 58,513.08/x - Step 3: Cross multiply
208,278.84x = 312,418.26 × 58,513.08 - Step 4: Simplify right side
208,278.84x = 18,280,554,640.84 - Step 5: Solve for x
x = 18,280,554,640.84/208,278.84 - Step 6: Final answer
x = 87,769.62
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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.