Finding the Fourth Proportional to 239,201.91, 358,837.87 and 87,406.49
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Solution
The fourth proportional to 239,201.91, 358,837.87 and 87,406.49 is: 131,122.53
Step by Step Solution
- Step 1: Write the proportion equation
239,201.91 : 358,837.87 = 87,406.49 : x - Step 2: Convert to fraction form
239,201.91/358,837.87 = 87,406.49/x - Step 3: Cross multiply
239,201.91x = 358,837.87 × 87,406.49 - Step 4: Simplify right side
239,201.91x = 31,364,759,784.07 - Step 5: Solve for x
x = 31,364,759,784.07/239,201.91 - Step 6: Final answer
x = 131,122.53
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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.