Finding the Fourth Proportional to 266,636.08, 399,872.79 and 140,207.73
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Solution
The fourth proportional to 266,636.08, 399,872.79 and 140,207.73 is: 210,268.84
Step by Step Solution
- Step 1: Write the proportion equation
266,636.08 : 399,872.79 = 140,207.73 : x - Step 2: Convert to fraction form
266,636.08/399,872.79 = 140,207.73/x - Step 3: Cross multiply
266,636.08x = 399,872.79 × 140,207.73 - Step 4: Simplify right side
266,636.08x = 56,065,257,851.90 - Step 5: Solve for x
x = 56,065,257,851.90/266,636.08 - Step 6: Final answer
x = 210,268.84
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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.