Finding the Fourth Proportional to 352,123.20, 527,251.68 and 211,688.64
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Solution
The fourth proportional to 352,123.20, 527,251.68 and 211,688.64 is: 316,971.99
Step by Step Solution
- Step 1: Write the proportion equation
352,123.20 : 527,251.68 = 211,688.64 : x - Step 2: Convert to fraction form
352,123.20/527,251.68 = 211,688.64/x - Step 3: Cross multiply
352,123.20x = 527,251.68 × 211,688.64 - Step 4: Simplify right side
352,123.20x = 111,613,191,076.92 - Step 5: Solve for x
x = 111,613,191,076.92/352,123.20 - Step 6: Final answer
x = 316,971.99
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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.