Finding the Fourth Proportional to 203,979.84, 305,710.14 and 115,282.80
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Solution
The fourth proportional to 203,979.84, 305,710.14 and 115,282.80 is: 172,777.47
Step by Step Solution
- Step 1: Write the proportion equation
203,979.84 : 305,710.14 = 115,282.80 : x - Step 2: Convert to fraction form
203,979.84/305,710.14 = 115,282.80/x - Step 3: Cross multiply
203,979.84x = 305,710.14 × 115,282.80 - Step 4: Simplify right side
203,979.84x = 35,243,120,927.59 - Step 5: Solve for x
x = 35,243,120,927.59/203,979.84 - Step 6: Final answer
x = 172,777.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.