Finding the Fourth Proportional to 286,706.84, 430,112.09 and 118,133.38
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Solution
The fourth proportional to 286,706.84, 430,112.09 and 118,133.38 is: 177,221.43
Step by Step Solution
- Step 1: Write the proportion equation
286,706.84 : 430,112.09 = 118,133.38 : x - Step 2: Convert to fraction form
286,706.84/430,112.09 = 118,133.38/x - Step 3: Cross multiply
286,706.84x = 430,112.09 × 118,133.38 - Step 4: Simplify right side
286,706.84x = 50,810,595,803.54 - Step 5: Solve for x
x = 50,810,595,803.54/286,706.84 - Step 6: Final answer
x = 177,221.43
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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.