Finding the Fourth Proportional to 284,873.13, 393,108.93 and 155,785.95
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Solution
The fourth proportional to 284,873.13, 393,108.93 and 155,785.95 is: 214,975.87
Step by Step Solution
- Step 1: Write the proportion equation
284,873.13 : 393,108.93 = 155,785.95 : x - Step 2: Convert to fraction form
284,873.13/393,108.93 = 155,785.95/x - Step 3: Cross multiply
284,873.13x = 393,108.93 × 155,785.95 - Step 4: Simplify right side
284,873.13x = 61,240,848,113.53 - Step 5: Solve for x
x = 61,240,848,113.53/284,873.13 - Step 6: Final answer
x = 214,975.87
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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.