Finding the Fourth Proportional to 266,374.40, 399,515.52 and 100,163.84
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Solution
The fourth proportional to 266,374.40, 399,515.52 and 100,163.84 is: 150,228.43
Step by Step Solution
- Step 1: Write the proportion equation
266,374.40 : 399,515.52 = 100,163.84 : x - Step 2: Convert to fraction form
266,374.40/399,515.52 = 100,163.84/x - Step 3: Cross multiply
266,374.40x = 399,515.52 × 100,163.84 - Step 4: Simplify right side
266,374.40x = 40,017,008,622.80 - Step 5: Solve for x
x = 40,017,008,622.80/266,374.40 - Step 6: Final answer
x = 150,228.43
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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.