Finding the Fourth Proportional to 248,400.05, 372,591.41 and 79,931.79
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Solution
The fourth proportional to 248,400.05, 372,591.41 and 79,931.79 is: 119,894.90
Step by Step Solution
- Step 1: Write the proportion equation
248,400.05 : 372,591.41 = 79,931.79 : x - Step 2: Convert to fraction form
248,400.05/372,591.41 = 79,931.79/x - Step 3: Cross multiply
248,400.05x = 372,591.41 × 79,931.79 - Step 4: Simplify right side
248,400.05x = 29,781,897,940.27 - Step 5: Solve for x
x = 29,781,897,940.27/248,400.05 - Step 6: Final answer
x = 119,894.90
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1.5x scale
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.