Finding the Fourth Proportional to 471,961.80, 707,942.70 and 139,537.80
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Solution
The fourth proportional to 471,961.80, 707,942.70 and 139,537.80 is: 209,306.70
Step by Step Solution
- Step 1: Write the proportion equation
471,961.80 : 707,942.70 = 139,537.80 : x - Step 2: Convert to fraction form
471,961.80/707,942.70 = 139,537.80/x - Step 3: Cross multiply
471,961.80x = 707,942.70 × 139,537.80 - Step 4: Simplify right side
471,961.80x = 98,784,766,884.06 - Step 5: Solve for x
x = 98,784,766,884.06/471,961.80 - Step 6: Final answer
x = 209,306.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.