Finding the Fourth Proportional to 382,938.99, 528,526.67 and 221,794.00
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Solution
The fourth proportional to 382,938.99, 528,526.67 and 221,794.00 is: 306,116.76
Step by Step Solution
- Step 1: Write the proportion equation
382,938.99 : 528,526.67 = 221,794.00 : x - Step 2: Convert to fraction form
382,938.99/528,526.67 = 221,794.00/x - Step 3: Cross multiply
382,938.99x = 528,526.67 × 221,794.00 - Step 4: Simplify right side
382,938.99x = 117,224,043,063.29 - Step 5: Solve for x
x = 117,224,043,063.29/382,938.99 - Step 6: Final answer
x = 306,116.76
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.