Finding the Fourth Proportional to 285,206.67, 393,585.28 and 157,882.26
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Solution
The fourth proportional to 285,206.67, 393,585.28 and 157,882.26 is: 217,877.56
Step by Step Solution
- Step 1: Write the proportion equation
285,206.67 : 393,585.28 = 157,882.26 : x - Step 2: Convert to fraction form
285,206.67/393,585.28 = 157,882.26/x - Step 3: Cross multiply
285,206.67x = 393,585.28 × 157,882.26 - Step 4: Simplify right side
285,206.67x = 62,140,133,509.13 - Step 5: Solve for x
x = 62,140,133,509.13/285,206.67 - Step 6: Final answer
x = 217,877.56
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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.