Finding the Fourth Proportional to 186,633.12, 257,553.70 and 106,060.80
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Solution
The fourth proportional to 186,633.12, 257,553.70 and 106,060.80 is: 146,363.90
Step by Step Solution
- Step 1: Write the proportion equation
186,633.12 : 257,553.70 = 106,060.80 : x - Step 2: Convert to fraction form
186,633.12/257,553.70 = 106,060.80/x - Step 3: Cross multiply
186,633.12x = 257,553.70 × 106,060.80 - Step 4: Simplify right side
186,633.12x = 27,316,351,199.81 - Step 5: Solve for x
x = 27,316,351,199.81/186,633.12 - Step 6: Final answer
x = 146,363.90
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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.