Finding the Fourth Proportional to 310,802.14, 428,974.87 and 197,602.78
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Solution
The fourth proportional to 310,802.14, 428,974.87 and 197,602.78 is: 272,735.02
Step by Step Solution
- Step 1: Write the proportion equation
310,802.14 : 428,974.87 = 197,602.78 : x - Step 2: Convert to fraction form
310,802.14/428,974.87 = 197,602.78/x - Step 3: Cross multiply
310,802.14x = 428,974.87 × 197,602.78 - Step 4: Simplify right side
310,802.14x = 84,766,626,862.14 - Step 5: Solve for x
x = 84,766,626,862.14/310,802.14 - Step 6: Final answer
x = 272,735.02
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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.