Finding the Fourth Proportional to 284,545.62, 392,660.46 and 157,218.48
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Solution
The fourth proportional to 284,545.62, 392,660.46 and 157,218.48 is: 216,954.60
Step by Step Solution
- Step 1: Write the proportion equation
284,545.62 : 392,660.46 = 157,218.48 : x - Step 2: Convert to fraction form
284,545.62/392,660.46 = 157,218.48/x - Step 3: Cross multiply
284,545.62x = 392,660.46 × 157,218.48 - Step 4: Simplify right side
284,545.62x = 61,733,480,677.30 - Step 5: Solve for x
x = 61,733,480,677.30/284,545.62 - Step 6: Final answer
x = 216,954.60
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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.