Finding the Fourth Proportional to 235,459.29, 324,933.08 and 128,029.60
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Solution
The fourth proportional to 235,459.29, 324,933.08 and 128,029.60 is: 176,680.45
Step by Step Solution
- Step 1: Write the proportion equation
235,459.29 : 324,933.08 = 128,029.60 : x - Step 2: Convert to fraction form
235,459.29/324,933.08 = 128,029.60/x - Step 3: Cross multiply
235,459.29x = 324,933.08 × 128,029.60 - Step 4: Simplify right side
235,459.29x = 41,601,052,259.17 - Step 5: Solve for x
x = 41,601,052,259.17/235,459.29 - Step 6: Final answer
x = 176,680.45
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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.