Finding the Fourth Proportional to 228,756.14, 343,177.35 and 86,643.96
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Solution
The fourth proportional to 228,756.14, 343,177.35 and 86,643.96 is: 129,982.28
Step by Step Solution
- Step 1: Write the proportion equation
228,756.14 : 343,177.35 = 86,643.96 : x - Step 2: Convert to fraction form
228,756.14/343,177.35 = 86,643.96/x - Step 3: Cross multiply
228,756.14x = 343,177.35 × 86,643.96 - Step 4: Simplify right side
228,756.14x = 29,734,244,586.31 - Step 5: Solve for x
x = 29,734,244,586.31/228,756.14 - Step 6: Final answer
x = 129,982.28
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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.