Finding the Fourth Proportional to 486,187.86, 729,281.79 and 131,201.88
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Solution
The fourth proportional to 486,187.86, 729,281.79 and 131,201.88 is: 196,802.82
Step by Step Solution
- Step 1: Write the proportion equation
486,187.86 : 729,281.79 = 131,201.88 : x - Step 2: Convert to fraction form
486,187.86/729,281.79 = 131,201.88/x - Step 3: Cross multiply
486,187.86x = 729,281.79 × 131,201.88 - Step 4: Simplify right side
486,187.86x = 95,683,141,897.77 - Step 5: Solve for x
x = 95,683,141,897.77/486,187.86 - Step 6: Final answer
x = 196,802.82
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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.