Finding the Fourth Proportional to 320,974.98, 442,940.06 and 177,731.95
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Solution
The fourth proportional to 320,974.98, 442,940.06 and 177,731.95 is: 245,267.09
Step by Step Solution
- Step 1: Write the proportion equation
320,974.98 : 442,940.06 = 177,731.95 : x - Step 2: Convert to fraction form
320,974.98/442,940.06 = 177,731.95/x - Step 3: Cross multiply
320,974.98x = 442,940.06 × 177,731.95 - Step 4: Simplify right side
320,974.98x = 78,724,600,596.92 - Step 5: Solve for x
x = 78,724,600,596.92/320,974.98 - Step 6: Final answer
x = 245,267.09
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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.