Finding the Fourth Proportional to 397,723.23, 548,852.36 and 218,875.23
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Solution
The fourth proportional to 397,723.23, 548,852.36 and 218,875.23 is: 302,044.68
Step by Step Solution
- Step 1: Write the proportion equation
397,723.23 : 548,852.36 = 218,875.23 : x - Step 2: Convert to fraction form
397,723.23/548,852.36 = 218,875.23/x - Step 3: Cross multiply
397,723.23x = 548,852.36 × 218,875.23 - Step 4: Simplify right side
397,723.23x = 120,130,185,436.67 - Step 5: Solve for x
x = 120,130,185,436.67/397,723.23 - Step 6: Final answer
x = 302,044.68
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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.