Finding the Fourth Proportional to 266,421.91, 399,635.97 and 76,885.96
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Solution
The fourth proportional to 266,421.91, 399,635.97 and 76,885.96 is: 115,329.84
Step by Step Solution
- Step 1: Write the proportion equation
266,421.91 : 399,635.97 = 76,885.96 : x - Step 2: Convert to fraction form
266,421.91/399,635.97 = 76,885.96/x - Step 3: Cross multiply
266,421.91x = 399,635.97 × 76,885.96 - Step 4: Simplify right side
266,421.91x = 30,726,395,203.98 - Step 5: Solve for x
x = 30,726,395,203.98/266,421.91 - Step 6: Final answer
x = 115,329.84
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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.