Finding the Fourth Proportional to 284,152.45, 392,129.57 and 156,827.13
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Solution
The fourth proportional to 284,152.45, 392,129.57 and 156,827.13 is: 216,420.99
Step by Step Solution
- Step 1: Write the proportion equation
284,152.45 : 392,129.57 = 156,827.13 : x - Step 2: Convert to fraction form
284,152.45/392,129.57 = 156,827.13/x - Step 3: Cross multiply
284,152.45x = 392,129.57 × 156,827.13 - Step 4: Simplify right side
284,152.45x = 61,496,553,090.59 - Step 5: Solve for x
x = 61,496,553,090.59/284,152.45 - Step 6: Final answer
x = 216,420.99
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1.5x scale
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.