Finding the Fourth Proportional to 421,869.36, 632,808.92 and 141,387.12
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Solution
The fourth proportional to 421,869.36, 632,808.92 and 141,387.12 is: 212,082.32
Step by Step Solution
- Step 1: Write the proportion equation
421,869.36 : 632,808.92 = 141,387.12 : x - Step 2: Convert to fraction form
421,869.36/632,808.92 = 141,387.12/x - Step 3: Cross multiply
421,869.36x = 632,808.92 × 141,387.12 - Step 4: Simplify right side
421,869.36x = 89,471,030,709.11 - Step 5: Solve for x
x = 89,471,030,709.11/421,869.36 - Step 6: Final answer
x = 212,082.32
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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.