Finding the Fourth Proportional to 392,267.64, 587,895.62 and 189,816.15
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Solution
The fourth proportional to 392,267.64, 587,895.62 and 189,816.15 is: 284,479.45
Step by Step Solution
- Step 1: Write the proportion equation
392,267.64 : 587,895.62 = 189,816.15 : x - Step 2: Convert to fraction form
392,267.64/587,895.62 = 189,816.15/x - Step 3: Cross multiply
392,267.64x = 587,895.62 × 189,816.15 - Step 4: Simplify right side
392,267.64x = 111,592,082,241.18 - Step 5: Solve for x
x = 111,592,082,241.18/392,267.64 - Step 6: Final answer
x = 284,479.45
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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.