Finding the Fourth Proportional to 251,753.91, 347,420.20 and 138,576.66
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Solution
The fourth proportional to 251,753.91, 347,420.20 and 138,576.66 is: 191,235.68
Step by Step Solution
- Step 1: Write the proportion equation
251,753.91 : 347,420.20 = 138,576.66 : x - Step 2: Convert to fraction form
251,753.91/347,420.20 = 138,576.66/x - Step 3: Cross multiply
251,753.91x = 347,420.20 × 138,576.66 - Step 4: Simplify right side
251,753.91x = 48,144,330,932.53 - Step 5: Solve for x
x = 48,144,330,932.53/251,753.91 - Step 6: Final answer
x = 191,235.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.