Finding the Fourth Proportional to 304,934.76, 420,819.20 and 168,955.99
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Solution
The fourth proportional to 304,934.76, 420,819.20 and 168,955.99 is: 233,164.37
Step by Step Solution
- Step 1: Write the proportion equation
304,934.76 : 420,819.20 = 168,955.99 : x - Step 2: Convert to fraction form
304,934.76/420,819.20 = 168,955.99/x - Step 3: Cross multiply
304,934.76x = 420,819.20 × 168,955.99 - Step 4: Simplify right side
304,934.76x = 71,099,923,283.77 - Step 5: Solve for x
x = 71,099,923,283.77/304,934.76 - Step 6: Final answer
x = 233,164.37
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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.