Finding the Fourth Proportional to 308,689.70, 463,068.58 and 98,278.70
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Solution
The fourth proportional to 308,689.70, 463,068.58 and 98,278.70 is: 147,428.88
Step by Step Solution
- Step 1: Write the proportion equation
308,689.70 : 463,068.58 = 98,278.70 : x - Step 2: Convert to fraction form
308,689.70/463,068.58 = 98,278.70/x - Step 3: Cross multiply
308,689.70x = 463,068.58 × 98,278.70 - Step 4: Simplify right side
308,689.70x = 45,509,778,053.25 - Step 5: Solve for x
x = 45,509,778,053.25/308,689.70 - Step 6: Final answer
x = 147,428.88
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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.