Finding the Fourth Proportional to 239,291.21, 330,224.08 and 131,865.09
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Solution
The fourth proportional to 239,291.21, 330,224.08 and 131,865.09 is: 181,975.04
Step by Step Solution
- Step 1: Write the proportion equation
239,291.21 : 330,224.08 = 131,865.09 : x - Step 2: Convert to fraction form
239,291.21/330,224.08 = 131,865.09/x - Step 3: Cross multiply
239,291.21x = 330,224.08 × 131,865.09 - Step 4: Simplify right side
239,291.21x = 43,545,026,378.25 - Step 5: Solve for x
x = 43,545,026,378.25/239,291.21 - Step 6: Final answer
x = 181,975.04
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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.