Finding the Fourth Proportional to 320,220.09, 441,877.14 and 176,980.14
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Solution
The fourth proportional to 320,220.09, 441,877.14 and 176,980.14 is: 244,217.90
Step by Step Solution
- Step 1: Write the proportion equation
320,220.09 : 441,877.14 = 176,980.14 : x - Step 2: Convert to fraction form
320,220.09/441,877.14 = 176,980.14/x - Step 3: Cross multiply
320,220.09x = 441,877.14 × 176,980.14 - Step 4: Simplify right side
320,220.09x = 78,203,478,100.00 - Step 5: Solve for x
x = 78,203,478,100.00/320,220.09 - Step 6: Final answer
x = 244,217.90
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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.