Finding the Fourth Proportional to 368,966.46, 509,211.99 and 225,821.82
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Solution
The fourth proportional to 368,966.46, 509,211.99 and 225,821.82 is: 311,657.54
Step by Step Solution
- Step 1: Write the proportion equation
368,966.46 : 509,211.99 = 225,821.82 : x - Step 2: Convert to fraction form
368,966.46/509,211.99 = 225,821.82/x - Step 3: Cross multiply
368,966.46x = 509,211.99 × 225,821.82 - Step 4: Simplify right side
368,966.46x = 114,991,178,347.62 - Step 5: Solve for x
x = 114,991,178,347.62/368,966.46 - Step 6: Final answer
x = 311,657.54
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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.