Finding the Fourth Proportional to 547,814.11, 821,721.18 and 148,454.88
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Solution
The fourth proportional to 547,814.11, 821,721.18 and 148,454.88 is: 222,682.32
Step by Step Solution
- Step 1: Write the proportion equation
547,814.11 : 821,721.18 = 148,454.88 : x - Step 2: Convert to fraction form
547,814.11/821,721.18 = 148,454.88/x - Step 3: Cross multiply
547,814.11x = 821,721.18 × 148,454.88 - Step 4: Simplify right side
547,814.11x = 121,988,519,170.36 - Step 5: Solve for x
x = 121,988,519,170.36/547,814.11 - Step 6: Final answer
x = 222,682.32
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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.