Finding the Fourth Proportional to 304,898.18, 420,905.76 and 214,331.78
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Solution
The fourth proportional to 304,898.18, 420,905.76 and 214,331.78 is: 295,880.68
Step by Step Solution
- Step 1: Write the proportion equation
304,898.18 : 420,905.76 = 214,331.78 : x - Step 2: Convert to fraction form
304,898.18/420,905.76 = 214,331.78/x - Step 3: Cross multiply
304,898.18x = 420,905.76 × 214,331.78 - Step 4: Simplify right side
304,898.18x = 90,213,480,753.05 - Step 5: Solve for x
x = 90,213,480,753.05/304,898.18 - Step 6: Final answer
x = 295,880.68
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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.