Finding the Fourth Proportional to 445,482.48, 668,212.47 and 129,942.12
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Solution
The fourth proportional to 445,482.48, 668,212.47 and 129,942.12 is: 194,909.90
Step by Step Solution
- Step 1: Write the proportion equation
445,482.48 : 668,212.47 = 129,942.12 : x - Step 2: Convert to fraction form
445,482.48/668,212.47 = 129,942.12/x - Step 3: Cross multiply
445,482.48x = 668,212.47 × 129,942.12 - Step 4: Simplify right side
445,482.48x = 86,828,944,962.24 - Step 5: Solve for x
x = 86,828,944,962.24/445,482.48 - Step 6: Final answer
x = 194,909.90
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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.