Finding the Fourth Proportional to 217,718.24, 300,449.96 and 122,224.92
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Solution
The fourth proportional to 217,718.24, 300,449.96 and 122,224.92 is: 168,669.71
Step by Step Solution
- Step 1: Write the proportion equation
217,718.24 : 300,449.96 = 122,224.92 : x - Step 2: Convert to fraction form
217,718.24/300,449.96 = 122,224.92/x - Step 3: Cross multiply
217,718.24x = 300,449.96 × 122,224.92 - Step 4: Simplify right side
217,718.24x = 36,722,472,325.00 - Step 5: Solve for x
x = 36,722,472,325.00/217,718.24 - Step 6: Final answer
x = 168,669.71
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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.