Finding the Fourth Proportional to 311,588.63, 467,461.80 and 86,949.03
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Solution
The fourth proportional to 311,588.63, 467,461.80 and 86,949.03 is: 130,445.55
Step by Step Solution
- Step 1: Write the proportion equation
311,588.63 : 467,461.80 = 86,949.03 : x - Step 2: Convert to fraction form
311,588.63/467,461.80 = 86,949.03/x - Step 3: Cross multiply
311,588.63x = 467,461.80 × 86,949.03 - Step 4: Simplify right side
311,588.63x = 40,645,350,072.05 - Step 5: Solve for x
x = 40,645,350,072.05/311,588.63 - Step 6: Final answer
x = 130,445.55
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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.