Finding the Fourth Proportional to 284,369.68, 392,432.10 and 155,304.90
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Solution
The fourth proportional to 284,369.68, 392,432.10 and 155,304.90 is: 214,321.82
Step by Step Solution
- Step 1: Write the proportion equation
284,369.68 : 392,432.10 = 155,304.90 : x - Step 2: Convert to fraction form
284,369.68/392,432.10 = 155,304.90/x - Step 3: Cross multiply
284,369.68x = 392,432.10 × 155,304.90 - Step 4: Simplify right side
284,369.68x = 60,946,628,047.29 - Step 5: Solve for x
x = 60,946,628,047.29/284,369.68 - Step 6: Final answer
x = 214,321.82
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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.