Finding the Fourth Proportional to 272,021.58, 408,031.56 and 72,341.80
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Solution
The fourth proportional to 272,021.58, 408,031.56 and 72,341.80 is: 108,512.48
Step by Step Solution
- Step 1: Write the proportion equation
272,021.58 : 408,031.56 = 72,341.80 : x - Step 2: Convert to fraction form
272,021.58/408,031.56 = 72,341.80/x - Step 3: Cross multiply
272,021.58x = 408,031.56 × 72,341.80 - Step 4: Simplify right side
272,021.58x = 29,517,736,487.13 - Step 5: Solve for x
x = 29,517,736,487.13/272,021.58 - Step 6: Final answer
x = 108,512.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.