Finding the Fourth Proportional to 218,113.70, 326,927.55 and 84,949.70
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Solution
The fourth proportional to 218,113.70, 326,927.55 and 84,949.70 is: 127,329.91
Step by Step Solution
- Step 1: Write the proportion equation
218,113.70 : 326,927.55 = 84,949.70 : x - Step 2: Convert to fraction form
218,113.70/326,927.55 = 84,949.70/x - Step 3: Cross multiply
218,113.70x = 326,927.55 × 84,949.70 - Step 4: Simplify right side
218,113.70x = 27,772,397,294.24 - Step 5: Solve for x
x = 27,772,397,294.24/218,113.70 - Step 6: Final answer
x = 127,329.91
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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.