Finding the Fourth Proportional to 351,804.60, 485,224.70 and 221,020.28
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Solution
The fourth proportional to 351,804.60, 485,224.70 and 221,020.28 is: 304,841.09
Step by Step Solution
- Step 1: Write the proportion equation
351,804.60 : 485,224.70 = 221,020.28 : x - Step 2: Convert to fraction form
351,804.60/485,224.70 = 221,020.28/x - Step 3: Cross multiply
351,804.60x = 485,224.70 × 221,020.28 - Step 4: Simplify right side
351,804.60x = 107,244,499,056.92 - Step 5: Solve for x
x = 107,244,499,056.92/351,804.60 - Step 6: Final answer
x = 304,841.09
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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.