Finding the Fourth Proportional to 199,286.24, 275,011.80 and 108,645.80
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Solution
The fourth proportional to 199,286.24, 275,011.80 and 108,645.80 is: 149,929.45
Step by Step Solution
- Step 1: Write the proportion equation
199,286.24 : 275,011.80 = 108,645.80 : x - Step 2: Convert to fraction form
199,286.24/275,011.80 = 108,645.80/x - Step 3: Cross multiply
199,286.24x = 275,011.80 × 108,645.80 - Step 4: Simplify right side
199,286.24x = 29,878,877,020.44 - Step 5: Solve for x
x = 29,878,877,020.44/199,286.24 - Step 6: Final answer
x = 149,929.45
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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.