Finding the Fourth Proportional to 388,792.92, 536,539.62 and 216,706.12
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Solution
The fourth proportional to 388,792.92, 536,539.62 and 216,706.12 is: 299,057.45
Step by Step Solution
- Step 1: Write the proportion equation
388,792.92 : 536,539.62 = 216,706.12 : x - Step 2: Convert to fraction form
388,792.92/536,539.62 = 216,706.12/x - Step 3: Cross multiply
388,792.92x = 536,539.62 × 216,706.12 - Step 4: Simplify right side
388,792.92x = 116,271,419,276.47 - Step 5: Solve for x
x = 116,271,419,276.47/388,792.92 - Step 6: Final answer
x = 299,057.45
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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.