Finding the Fourth Proportional to 658,523.80, 987,785.70 and 159,887.80
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Solution
The fourth proportional to 658,523.80, 987,785.70 and 159,887.80 is: 239,831.70
Step by Step Solution
- Step 1: Write the proportion equation
658,523.80 : 987,785.70 = 159,887.80 : x - Step 2: Convert to fraction form
658,523.80/987,785.70 = 159,887.80/x - Step 3: Cross multiply
658,523.80x = 987,785.70 × 159,887.80 - Step 4: Simplify right side
658,523.80x = 157,934,882,444.46 - Step 5: Solve for x
x = 157,934,882,444.46/658,523.80 - Step 6: Final answer
x = 239,831.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.