Finding the Fourth Proportional to 397,964.40, 549,163.12 and 225,885.87
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Solution
The fourth proportional to 397,964.40, 549,163.12 and 225,885.87 is: 311,706.75
Step by Step Solution
- Step 1: Write the proportion equation
397,964.40 : 549,163.12 = 225,885.87 : x - Step 2: Convert to fraction form
397,964.40/549,163.12 = 225,885.87/x - Step 3: Cross multiply
397,964.40x = 549,163.12 × 225,885.87 - Step 4: Simplify right side
397,964.40x = 124,048,189,133.11 - Step 5: Solve for x
x = 124,048,189,133.11/397,964.40 - Step 6: Final answer
x = 311,706.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.