Finding the Fourth Proportional to 387,125.76, 534,232.80 and 217,360.80
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Solution
The fourth proportional to 387,125.76, 534,232.80 and 217,360.80 is: 299,957.48
Step by Step Solution
- Step 1: Write the proportion equation
387,125.76 : 534,232.80 = 217,360.80 : x - Step 2: Convert to fraction form
387,125.76/534,232.80 = 217,360.80/x - Step 3: Cross multiply
387,125.76x = 534,232.80 × 217,360.80 - Step 4: Simplify right side
387,125.76x = 116,121,268,794.24 - Step 5: Solve for x
x = 116,121,268,794.24/387,125.76 - Step 6: Final answer
x = 299,957.48
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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.