Finding the Fourth Proportional to 453,358.49, 680,013.11 and 137,790.79
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Solution
The fourth proportional to 453,358.49, 680,013.11 and 137,790.79 is: 206,678.69
Step by Step Solution
- Step 1: Write the proportion equation
453,358.49 : 680,013.11 = 137,790.79 : x - Step 2: Convert to fraction form
453,358.49/680,013.11 = 137,790.79/x - Step 3: Cross multiply
453,358.49x = 680,013.11 × 137,790.79 - Step 4: Simplify right side
453,358.49x = 93,699,539,548.24 - Step 5: Solve for x
x = 93,699,539,548.24/453,358.49 - Step 6: Final answer
x = 206,678.69
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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.