Finding the Fourth Proportional to 422,048.63, 633,124.99 and 137,663.14
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Solution
The fourth proportional to 422,048.63, 633,124.99 and 137,663.14 is: 206,511.69
Step by Step Solution
- Step 1: Write the proportion equation
422,048.63 : 633,124.99 = 137,663.14 : x - Step 2: Convert to fraction form
422,048.63/633,124.99 = 137,663.14/x - Step 3: Cross multiply
422,048.63x = 633,124.99 × 137,663.14 - Step 4: Simplify right side
422,048.63x = 87,157,974,135.87 - Step 5: Solve for x
x = 87,157,974,135.87/422,048.63 - Step 6: Final answer
x = 206,511.69
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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.