Finding the Fourth Proportional to 326,555.84, 489,577.08 and 206,359.98
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Solution
The fourth proportional to 326,555.84, 489,577.08 and 206,359.98 is: 309,377.77
Step by Step Solution
- Step 1: Write the proportion equation
326,555.84 : 489,577.08 = 206,359.98 : x - Step 2: Convert to fraction form
326,555.84/489,577.08 = 206,359.98/x - Step 3: Cross multiply
326,555.84x = 489,577.08 × 206,359.98 - Step 4: Simplify right side
326,555.84x = 101,029,117,575.70 - Step 5: Solve for x
x = 101,029,117,575.70/326,555.84 - Step 6: Final answer
x = 309,377.77
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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.