Finding the Fourth Proportional to 203,929.02, 305,937.26 and 85,532.12
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Solution
The fourth proportional to 203,929.02, 305,937.26 and 85,532.12 is: 128,316.52
Step by Step Solution
- Step 1: Write the proportion equation
203,929.02 : 305,937.26 = 85,532.12 : x - Step 2: Convert to fraction form
203,929.02/305,937.26 = 85,532.12/x - Step 3: Cross multiply
203,929.02x = 305,937.26 × 85,532.12 - Step 4: Simplify right side
203,929.02x = 26,167,462,434.79 - Step 5: Solve for x
x = 26,167,462,434.79/203,929.02 - Step 6: Final answer
x = 128,316.52
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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.