Finding the Fourth Proportional to 236,088.13, 325,801.67 and 128,658.18
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Solution
The fourth proportional to 236,088.13, 325,801.67 and 128,658.18 is: 177,548.32
Step by Step Solution
- Step 1: Write the proportion equation
236,088.13 : 325,801.67 = 128,658.18 : x - Step 2: Convert to fraction form
236,088.13/325,801.67 = 128,658.18/x - Step 3: Cross multiply
236,088.13x = 325,801.67 × 128,658.18 - Step 4: Simplify right side
236,088.13x = 41,917,049,903.16 - Step 5: Solve for x
x = 41,917,049,903.16/236,088.13 - Step 6: Final answer
x = 177,548.32
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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.