Finding the Fourth Proportional to 235,634.30, 325,178.68 and 128,204.42
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Solution
The fourth proportional to 235,634.30, 325,178.68 and 128,204.42 is: 176,923.92
Step by Step Solution
- Step 1: Write the proportion equation
235,634.30 : 325,178.68 = 128,204.42 : x - Step 2: Convert to fraction form
235,634.30/325,178.68 = 128,204.42/x - Step 3: Cross multiply
235,634.30x = 325,178.68 × 128,204.42 - Step 4: Simplify right side
235,634.30x = 41,689,344,065.77 - Step 5: Solve for x
x = 41,689,344,065.77/235,634.30 - Step 6: Final answer
x = 176,923.92
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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.