Finding the Fourth Proportional to 178,968.20, 246,977.81 and 98,396.28
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Solution
The fourth proportional to 178,968.20, 246,977.81 and 98,396.28 is: 135,787.80
Step by Step Solution
- Step 1: Write the proportion equation
178,968.20 : 246,977.81 = 98,396.28 : x - Step 2: Convert to fraction form
178,968.20/246,977.81 = 98,396.28/x - Step 3: Cross multiply
178,968.20x = 246,977.81 × 98,396.28 - Step 4: Simplify right side
178,968.20x = 24,301,697,254.57 - Step 5: Solve for x
x = 24,301,697,254.57/178,968.20 - Step 6: Final answer
x = 135,787.80
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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.