Finding the Fourth Proportional to 178,478.48, 246,266.18 and 102,021.80
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Solution
The fourth proportional to 178,478.48, 246,266.18 and 102,021.80 is: 140,770.58
Step by Step Solution
- Step 1: Write the proportion equation
178,478.48 : 246,266.18 = 102,021.80 : x - Step 2: Convert to fraction form
178,478.48/246,266.18 = 102,021.80/x - Step 3: Cross multiply
178,478.48x = 246,266.18 × 102,021.80 - Step 4: Simplify right side
178,478.48x = 25,124,518,962.72 - Step 5: Solve for x
x = 25,124,518,962.72/178,478.48 - Step 6: Final answer
x = 140,770.58
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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.