Finding the Fourth Proportional to 304,728.14, 420,385.26 and 197,332.77
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Solution
The fourth proportional to 304,728.14, 420,385.26 and 197,332.77 is: 272,228.84
Step by Step Solution
- Step 1: Write the proportion equation
304,728.14 : 420,385.26 = 197,332.77 : x - Step 2: Convert to fraction form
304,728.14/420,385.26 = 197,332.77/x - Step 3: Cross multiply
304,728.14x = 420,385.26 × 197,332.77 - Step 4: Simplify right side
304,728.14x = 82,955,786,836.31 - Step 5: Solve for x
x = 82,955,786,836.31/304,728.14 - Step 6: Final answer
x = 272,228.84
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1.5x scale
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.