Finding the Fourth Proportional to 284,098.40, 392,074.80 and 163,278.80
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Solution
The fourth proportional to 284,098.40, 392,074.80 and 163,278.80 is: 225,335.67
Step by Step Solution
- Step 1: Write the proportion equation
284,098.40 : 392,074.80 = 163,278.80 : x - Step 2: Convert to fraction form
284,098.40/392,074.80 = 163,278.80/x - Step 3: Cross multiply
284,098.40x = 392,074.80 × 163,278.80 - Step 4: Simplify right side
284,098.40x = 64,017,502,854.24 - Step 5: Solve for x
x = 64,017,502,854.24/284,098.40 - Step 6: Final answer
x = 225,335.67
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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.