Finding the Fourth Proportional to 220,988.84, 331,483.86 and 71,240.09
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Solution
The fourth proportional to 220,988.84, 331,483.86 and 71,240.09 is: 106,860.32
Step by Step Solution
- Step 1: Write the proportion equation
220,988.84 : 331,483.86 = 71,240.09 : x - Step 2: Convert to fraction form
220,988.84/331,483.86 = 71,240.09/x - Step 3: Cross multiply
220,988.84x = 331,483.86 × 71,240.09 - Step 4: Simplify right side
220,988.84x = 23,614,938,362.53 - Step 5: Solve for x
x = 23,614,938,362.53/220,988.84 - Step 6: Final answer
x = 106,860.32
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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.