Finding the Fourth Proportional to 235,790.56, 325,395.12 and 128,363.68
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Solution
The fourth proportional to 235,790.56, 325,395.12 and 128,363.68 is: 177,144.14
Step by Step Solution
- Step 1: Write the proportion equation
235,790.56 : 325,395.12 = 128,363.68 : x - Step 2: Convert to fraction form
235,790.56/325,395.12 = 128,363.68/x - Step 3: Cross multiply
235,790.56x = 325,395.12 × 128,363.68 - Step 4: Simplify right side
235,790.56x = 41,768,915,057.24 - Step 5: Solve for x
x = 41,768,915,057.24/235,790.56 - Step 6: Final answer
x = 177,144.14
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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.