Finding the Fourth Proportional to 286,812.70, 430,161.45 and 137,052.70
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Solution
The fourth proportional to 286,812.70, 430,161.45 and 137,052.70 is: 205,551.53
Step by Step Solution
- Step 1: Write the proportion equation
286,812.70 : 430,161.45 = 137,052.70 : x - Step 2: Convert to fraction form
286,812.70/430,161.45 = 137,052.70/x - Step 3: Cross multiply
286,812.70x = 430,161.45 × 137,052.70 - Step 4: Simplify right side
286,812.70x = 58,954,788,158.42 - Step 5: Solve for x
x = 58,954,788,158.42/286,812.70 - Step 6: Final answer
x = 205,551.53
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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.