Finding the Fourth Proportional to 178,389.03, 245,975.08 and 113,771.84
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Solution
The fourth proportional to 178,389.03, 245,975.08 and 113,771.84 is: 156,876.45
Step by Step Solution
- Step 1: Write the proportion equation
178,389.03 : 245,975.08 = 113,771.84 : x - Step 2: Convert to fraction form
178,389.03/245,975.08 = 113,771.84/x - Step 3: Cross multiply
178,389.03x = 245,975.08 × 113,771.84 - Step 4: Simplify right side
178,389.03x = 27,985,037,528.37 - Step 5: Solve for x
x = 27,985,037,528.37/178,389.03 - Step 6: Final answer
x = 156,876.45
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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.