Finding the Fourth Proportional to 251,952.88, 347,694.92 and 138,775.63
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Solution
The fourth proportional to 251,952.88, 347,694.92 and 138,775.63 is: 191,510.34
Step by Step Solution
- Step 1: Write the proportion equation
251,952.88 : 347,694.92 = 138,775.63 : x - Step 2: Convert to fraction form
251,952.88/347,694.92 = 138,775.63/x - Step 3: Cross multiply
251,952.88x = 347,694.92 × 138,775.63 - Step 4: Simplify right side
251,952.88x = 48,251,581,570.80 - Step 5: Solve for x
x = 48,251,581,570.80/251,952.88 - Step 6: Final answer
x = 191,510.34
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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.