Finding the Fourth Proportional to 189,341.29, 261,377.95 and 163,396.63
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Solution
The fourth proportional to 189,341.29, 261,377.95 and 163,396.63 is: 225,562.40
Step by Step Solution
- Step 1: Write the proportion equation
189,341.29 : 261,377.95 = 163,396.63 : x - Step 2: Convert to fraction form
189,341.29/261,377.95 = 163,396.63/x - Step 3: Cross multiply
189,341.29x = 261,377.95 × 163,396.63 - Step 4: Simplify right side
189,341.29x = 42,708,276,186.31 - Step 5: Solve for x
x = 42,708,276,186.31/189,341.29 - Step 6: Final answer
x = 225,562.40
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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.