Finding the Fourth Proportional to 284,302.68, 392,339.60 and 155,242.05
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Solution
The fourth proportional to 284,302.68, 392,339.60 and 155,242.05 is: 214,235.06
Step by Step Solution
- Step 1: Write the proportion equation
284,302.68 : 392,339.60 = 155,242.05 : x - Step 2: Convert to fraction form
284,302.68/392,339.60 = 155,242.05/x - Step 3: Cross multiply
284,302.68x = 392,339.60 × 155,242.05 - Step 4: Simplify right side
284,302.68x = 60,907,603,023.97 - Step 5: Solve for x
x = 60,907,603,023.97/284,302.68 - Step 6: Final answer
x = 214,235.06
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.