Finding the Fourth Proportional to 321,605.15, 482,430.95 and 84,944.75
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Solution
The fourth proportional to 321,605.15, 482,430.95 and 84,944.75 is: 127,423.26
Step by Step Solution
- Step 1: Write the proportion equation
321,605.15 : 482,430.95 = 84,944.75 : x - Step 2: Convert to fraction form
321,605.15/482,430.95 = 84,944.75/x - Step 3: Cross multiply
321,605.15x = 482,430.95 × 84,944.75 - Step 4: Simplify right side
321,605.15x = 40,979,976,015.29 - Step 5: Solve for x
x = 40,979,976,015.29/321,605.15 - Step 6: Final answer
x = 127,423.26
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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.