Finding the Fourth Proportional to 235,989.36, 353,890.08 and 86,195.52
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Solution
The fourth proportional to 235,989.36, 353,890.08 and 86,195.52 is: 129,258.96
Step by Step Solution
- Step 1: Write the proportion equation
235,989.36 : 353,890.08 = 86,195.52 : x - Step 2: Convert to fraction form
235,989.36/353,890.08 = 86,195.52/x - Step 3: Cross multiply
235,989.36x = 353,890.08 × 86,195.52 - Step 4: Simplify right side
235,989.36x = 30,503,739,468.44 - Step 5: Solve for x
x = 30,503,739,468.44/235,989.36 - Step 6: Final answer
x = 129,258.96
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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.