Finding the Fourth Proportional to 240,653.38, 331,997.39 and 145,106.99
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Solution
The fourth proportional to 240,653.38, 331,997.39 and 145,106.99 is: 200,184.78
Step by Step Solution
- Step 1: Write the proportion equation
240,653.38 : 331,997.39 = 145,106.99 : x - Step 2: Convert to fraction form
240,653.38/331,997.39 = 145,106.99/x - Step 3: Cross multiply
240,653.38x = 331,997.39 × 145,106.99 - Step 4: Simplify right side
240,653.38x = 48,175,142,084.06 - Step 5: Solve for x
x = 48,175,142,084.06/240,653.38 - Step 6: Final answer
x = 200,184.78
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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.