Finding the Fourth Proportional to 251,952.82, 347,689.12 and 137,228.26
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Solution
The fourth proportional to 251,952.82, 347,689.12 and 137,228.26 is: 189,371.86
Step by Step Solution
- Step 1: Write the proportion equation
251,952.82 : 347,689.12 = 137,228.26 : x - Step 2: Convert to fraction form
251,952.82/347,689.12 = 137,228.26/x - Step 3: Cross multiply
251,952.82x = 347,689.12 × 137,228.26 - Step 4: Simplify right side
251,952.82x = 47,712,772,958.53 - Step 5: Solve for x
x = 47,712,772,958.53/251,952.82 - Step 6: Final answer
x = 189,371.86
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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.