Finding the Fourth Proportional to 189,459.30, 261,497.70 and 124,940.14
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Solution
The fourth proportional to 189,459.30, 261,497.70 and 124,940.14 is: 172,446.31
Step by Step Solution
- Step 1: Write the proportion equation
189,459.30 : 261,497.70 = 124,940.14 : x - Step 2: Convert to fraction form
189,459.30/261,497.70 = 124,940.14/x - Step 3: Cross multiply
189,459.30x = 261,497.70 × 124,940.14 - Step 4: Simplify right side
189,459.30x = 32,671,558,593.93 - Step 5: Solve for x
x = 32,671,558,593.93/189,459.30 - Step 6: Final answer
x = 172,446.31
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1.5x scale
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.