Finding the Fourth Proportional to 284,530.90, 392,660.56 and 157,214.70
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Solution
The fourth proportional to 284,530.90, 392,660.56 and 157,214.70 is: 216,960.66
Step by Step Solution
- Step 1: Write the proportion equation
284,530.90 : 392,660.56 = 157,214.70 : x - Step 2: Convert to fraction form
284,530.90/392,660.56 = 157,214.70/x - Step 3: Cross multiply
284,530.90x = 392,660.56 × 157,214.70 - Step 4: Simplify right side
284,530.90x = 61,732,012,142.23 - Step 5: Solve for x
x = 61,732,012,142.23/284,530.90 - Step 6: Final answer
x = 216,960.66
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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.