Finding the Fourth Proportional to 386,961.36, 580,666.14 and 162,301.80
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Solution
The fourth proportional to 386,961.36, 580,666.14 and 162,301.80 is: 243,546.69
Step by Step Solution
- Step 1: Write the proportion equation
386,961.36 : 580,666.14 = 162,301.80 : x - Step 2: Convert to fraction form
386,961.36/580,666.14 = 162,301.80/x - Step 3: Cross multiply
386,961.36x = 580,666.14 × 162,301.80 - Step 4: Simplify right side
386,961.36x = 94,243,159,721.05 - Step 5: Solve for x
x = 94,243,159,721.05/386,961.36 - Step 6: Final answer
x = 243,546.69
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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.