Finding the Fourth Proportional to 235,864.12, 325,492.26 and 128,434.92
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Solution
The fourth proportional to 235,864.12, 325,492.26 and 128,434.92 is: 177,240.07
Step by Step Solution
- Step 1: Write the proportion equation
235,864.12 : 325,492.26 = 128,434.92 : x - Step 2: Convert to fraction form
235,864.12/325,492.26 = 128,434.92/x - Step 3: Cross multiply
235,864.12x = 325,492.26 × 128,434.92 - Step 4: Simplify right side
235,864.12x = 41,804,572,373.72 - Step 5: Solve for x
x = 41,804,572,373.72/235,864.12 - Step 6: Final answer
x = 177,240.07
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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.