Finding the Fourth Proportional to 309,660.60, 427,329.84 and 171,838.14
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Solution
The fourth proportional to 309,660.60, 427,329.84 and 171,838.14 is: 237,135.64
Step by Step Solution
- Step 1: Write the proportion equation
309,660.60 : 427,329.84 = 171,838.14 : x - Step 2: Convert to fraction form
309,660.60/427,329.84 = 171,838.14/x - Step 3: Cross multiply
309,660.60x = 427,329.84 × 171,838.14 - Step 4: Simplify right side
309,660.60x = 73,431,564,872.10 - Step 5: Solve for x
x = 73,431,564,872.10/309,660.60 - Step 6: Final answer
x = 237,135.64
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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.