Finding the Fourth Proportional to 321,918.20, 444,252.70 and 176,737.49
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Solution
The fourth proportional to 321,918.20, 444,252.70 and 176,737.49 is: 243,900.81
Step by Step Solution
- Step 1: Write the proportion equation
321,918.20 : 444,252.70 = 176,737.49 : x - Step 2: Convert to fraction form
321,918.20/444,252.70 = 176,737.49/x - Step 3: Cross multiply
321,918.20x = 444,252.70 × 176,737.49 - Step 4: Simplify right side
321,918.20x = 78,516,108,305.82 - Step 5: Solve for x
x = 78,516,108,305.82/321,918.20 - Step 6: Final answer
x = 243,900.81
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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.