Finding the Fourth Proportional to 299,912.61, 413,879.34 and 163,947.12
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Solution
The fourth proportional to 299,912.61, 413,879.34 and 163,947.12 is: 226,246.99
Step by Step Solution
- Step 1: Write the proportion equation
299,912.61 : 413,879.34 = 163,947.12 : x - Step 2: Convert to fraction form
299,912.61/413,879.34 = 163,947.12/x - Step 3: Cross multiply
299,912.61x = 413,879.34 × 163,947.12 - Step 4: Simplify right side
299,912.61x = 67,854,326,289.12 - Step 5: Solve for x
x = 67,854,326,289.12/299,912.61 - Step 6: Final answer
x = 226,246.99
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1.5x scale
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.