Finding the Fourth Proportional to 203,423.58, 305,142.66 and 84,931.92
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Solution
The fourth proportional to 203,423.58, 305,142.66 and 84,931.92 is: 127,400.92
Step by Step Solution
- Step 1: Write the proportion equation
203,423.58 : 305,142.66 = 84,931.92 : x - Step 2: Convert to fraction form
203,423.58/305,142.66 = 84,931.92/x - Step 3: Cross multiply
203,423.58x = 305,142.66 × 84,931.92 - Step 4: Simplify right side
203,423.58x = 25,916,351,987.71 - Step 5: Solve for x
x = 25,916,351,987.71/203,423.58 - Step 6: Final answer
x = 127,400.92
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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.