Finding the Fourth Proportional to 220,985.84, 331,479.36 and 71,237.09
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Solution
The fourth proportional to 220,985.84, 331,479.36 and 71,237.09 is: 106,855.82
Step by Step Solution
- Step 1: Write the proportion equation
220,985.84 : 331,479.36 = 71,237.09 : x - Step 2: Convert to fraction form
220,985.84/331,479.36 = 71,237.09/x - Step 3: Cross multiply
220,985.84x = 331,479.36 × 71,237.09 - Step 4: Simplify right side
220,985.84x = 23,613,623,344.07 - Step 5: Solve for x
x = 23,613,623,344.07/220,985.84 - Step 6: Final answer
x = 106,855.82
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1.5x scale
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.