Finding the Fourth Proportional to 320,940.80, 442,905.26 and 175,752.75
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Solution
The fourth proportional to 320,940.80, 442,905.26 and 175,752.75 is: 242,542.61
Step by Step Solution
- Step 1: Write the proportion equation
320,940.80 : 442,905.26 = 175,752.75 : x - Step 2: Convert to fraction form
320,940.80/442,905.26 = 175,752.75/x - Step 3: Cross multiply
320,940.80x = 442,905.26 × 175,752.75 - Step 4: Simplify right side
320,940.80x = 77,841,816,555.70 - Step 5: Solve for x
x = 77,841,816,555.70/320,940.80 - Step 6: Final answer
x = 242,542.61
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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.