Finding the Fourth Proportional to 486,605.70, 729,908.55 and 154,181.70
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Solution
The fourth proportional to 486,605.70, 729,908.55 and 154,181.70 is: 231,272.55
Step by Step Solution
- Step 1: Write the proportion equation
486,605.70 : 729,908.55 = 154,181.70 : x - Step 2: Convert to fraction form
486,605.70/729,908.55 = 154,181.70/x - Step 3: Cross multiply
486,605.70x = 729,908.55 × 154,181.70 - Step 4: Simplify right side
486,605.70x = 112,538,541,083.54 - Step 5: Solve for x
x = 112,538,541,083.54/486,605.70 - Step 6: Final answer
x = 231,272.55
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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.