Finding the Fourth Proportional to 178,972.88, 246,977.30 and 102,489.44
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Solution
The fourth proportional to 178,972.88, 246,977.30 and 102,489.44 is: 141,432.41
Step by Step Solution
- Step 1: Write the proportion equation
178,972.88 : 246,977.30 = 102,489.44 : x - Step 2: Convert to fraction form
178,972.88/246,977.30 = 102,489.44/x - Step 3: Cross multiply
178,972.88x = 246,977.30 × 102,489.44 - Step 4: Simplify right side
178,972.88x = 25,312,564,191.05 - Step 5: Solve for x
x = 25,312,564,191.05/178,972.88 - Step 6: Final answer
x = 141,432.41
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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.