Finding the Fourth Proportional to 324,625.56, 486,990.66 and 99,985.92
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Solution
The fourth proportional to 324,625.56, 486,990.66 and 99,985.92 is: 149,994.99
Step by Step Solution
- Step 1: Write the proportion equation
324,625.56 : 486,990.66 = 99,985.92 : x - Step 2: Convert to fraction form
324,625.56/486,990.66 = 99,985.92/x - Step 3: Cross multiply
324,625.56x = 486,990.66 × 99,985.92 - Step 4: Simplify right side
324,625.56x = 48,692,209,171.51 - Step 5: Solve for x
x = 48,692,209,171.51/324,625.56 - Step 6: Final answer
x = 149,994.99
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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.