Finding the Fourth Proportional to 239,237.21, 330,135.14 and 131,805.09
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Solution
The fourth proportional to 239,237.21, 330,135.14 and 131,805.09 is: 181,884.30
Step by Step Solution
- Step 1: Write the proportion equation
239,237.21 : 330,135.14 = 131,805.09 : x - Step 2: Convert to fraction form
239,237.21/330,135.14 = 131,805.09/x - Step 3: Cross multiply
239,237.21x = 330,135.14 × 131,805.09 - Step 4: Simplify right side
239,237.21x = 43,513,492,169.38 - Step 5: Solve for x
x = 43,513,492,169.38/239,237.21 - Step 6: Final answer
x = 181,884.30
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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.