Finding the Fourth Proportional to 286,974.93, 430,176.76 and 137,039.94
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Solution
The fourth proportional to 286,974.93, 430,176.76 and 137,039.94 is: 205,423.51
Step by Step Solution
- Step 1: Write the proportion equation
286,974.93 : 430,176.76 = 137,039.94 : x - Step 2: Convert to fraction form
286,974.93/430,176.76 = 137,039.94/x - Step 3: Cross multiply
286,974.93x = 430,176.76 × 137,039.94 - Step 4: Simplify right side
286,974.93x = 58,951,397,379.79 - Step 5: Solve for x
x = 58,951,397,379.79/286,974.93 - Step 6: Final answer
x = 205,423.51
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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.