Finding the Fourth Proportional to 284,444.36, 392,529.14 and 155,381.29
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Solution
The fourth proportional to 284,444.36, 392,529.14 and 155,381.29 is: 214,423.95
Step by Step Solution
- Step 1: Write the proportion equation
284,444.36 : 392,529.14 = 155,381.29 : x - Step 2: Convert to fraction form
284,444.36/392,529.14 = 155,381.29/x - Step 3: Cross multiply
284,444.36x = 392,529.14 × 155,381.29 - Step 4: Simplify right side
284,444.36x = 60,991,682,960.24 - Step 5: Solve for x
x = 60,991,682,960.24/284,444.36 - Step 6: Final answer
x = 214,423.95
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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.