Finding the Fourth Proportional to 217,135.08, 325,637.01 and 128,364.75
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Solution
The fourth proportional to 217,135.08, 325,637.01 and 128,364.75 is: 192,508.34
Step by Step Solution
- Step 1: Write the proportion equation
217,135.08 : 325,637.01 = 128,364.75 : x - Step 2: Convert to fraction form
217,135.08/325,637.01 = 128,364.75/x - Step 3: Cross multiply
217,135.08x = 325,637.01 × 128,364.75 - Step 4: Simplify right side
217,135.08x = 41,800,313,379.40 - Step 5: Solve for x
x = 41,800,313,379.40/217,135.08 - Step 6: Final answer
x = 192,508.34
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.