Finding the Fourth Proportional to 415,688.70, 623,716.65 and 202,338.30
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Solution
The fourth proportional to 415,688.70, 623,716.65 and 202,338.30 is: 303,596.82
Step by Step Solution
- Step 1: Write the proportion equation
415,688.70 : 623,716.65 = 202,338.30 : x - Step 2: Convert to fraction form
415,688.70/623,716.65 = 202,338.30/x - Step 3: Cross multiply
415,688.70x = 623,716.65 × 202,338.30 - Step 4: Simplify right side
415,688.70x = 126,201,766,642.70 - Step 5: Solve for x
x = 126,201,766,642.70/415,688.70 - Step 6: Final answer
x = 303,596.82
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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.