Finding the Fourth Proportional to 286,880.07, 430,309.08 and 76,516.17
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Solution
The fourth proportional to 286,880.07, 430,309.08 and 76,516.17 is: 114,771.31
Step by Step Solution
- Step 1: Write the proportion equation
286,880.07 : 430,309.08 = 76,516.17 : x - Step 2: Convert to fraction form
286,880.07/430,309.08 = 76,516.17/x - Step 3: Cross multiply
286,880.07x = 430,309.08 × 76,516.17 - Step 4: Simplify right side
286,880.07x = 32,925,602,717.82 - Step 5: Solve for x
x = 32,925,602,717.82/286,880.07 - Step 6: Final answer
x = 114,771.31
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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.