Finding the Fourth Proportional to 313,164.68, 469,516.97 and 99,809.81
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Solution
The fourth proportional to 313,164.68, 469,516.97 and 99,809.81 is: 149,641.39
Step by Step Solution
- Step 1: Write the proportion equation
313,164.68 : 469,516.97 = 99,809.81 : x - Step 2: Convert to fraction form
313,164.68/469,516.97 = 99,809.81/x - Step 3: Cross multiply
313,164.68x = 469,516.97 × 99,809.81 - Step 4: Simplify right side
313,164.68x = 46,862,399,068.43 - Step 5: Solve for x
x = 46,862,399,068.43/313,164.68 - Step 6: Final answer
x = 149,641.39
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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.