Finding the Fourth Proportional to 306,302.05, 459,153.12 and 171,431.99
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Solution
The fourth proportional to 306,302.05, 459,153.12 and 171,431.99 is: 256,980.11
Step by Step Solution
- Step 1: Write the proportion equation
306,302.05 : 459,153.12 = 171,431.99 : x - Step 2: Convert to fraction form
306,302.05/459,153.12 = 171,431.99/x - Step 3: Cross multiply
306,302.05x = 459,153.12 × 171,431.99 - Step 4: Simplify right side
306,302.05x = 78,713,533,076.31 - Step 5: Solve for x
x = 78,713,533,076.31/306,302.05 - Step 6: Final answer
x = 256,980.11
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.