Finding the Fourth Proportional to 284,913.05, 393,153.53 and 157,585.91
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Solution
The fourth proportional to 284,913.05, 393,153.53 and 157,585.91 is: 217,453.90
Step by Step Solution
- Step 1: Write the proportion equation
284,913.05 : 393,153.53 = 157,585.91 : x - Step 2: Convert to fraction form
284,913.05/393,153.53 = 157,585.91/x - Step 3: Cross multiply
284,913.05x = 393,153.53 × 157,585.91 - Step 4: Simplify right side
284,913.05x = 61,955,454,041.07 - Step 5: Solve for x
x = 61,955,454,041.07/284,913.05 - Step 6: Final answer
x = 217,453.90
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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.