Finding the Fourth Proportional to 499,107.81, 688,769.09 and 272,753.31
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Solution
The fourth proportional to 499,107.81, 688,769.09 and 272,753.31 is: 376,399.74
Step by Step Solution
- Step 1: Write the proportion equation
499,107.81 : 688,769.09 = 272,753.31 : x - Step 2: Convert to fraction form
499,107.81/688,769.09 = 272,753.31/x - Step 3: Cross multiply
499,107.81x = 688,769.09 × 272,753.31 - Step 4: Simplify right side
499,107.81x = 187,864,049,123.19 - Step 5: Solve for x
x = 187,864,049,123.19/499,107.81 - Step 6: Final answer
x = 376,399.74
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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.