Finding the Fourth Proportional to 216,143.07, 298,340.79 and 125,539.77
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Solution
The fourth proportional to 216,143.07, 298,340.79 and 125,539.77 is: 173,281.68
Step by Step Solution
- Step 1: Write the proportion equation
216,143.07 : 298,340.79 = 125,539.77 : x - Step 2: Convert to fraction form
216,143.07/298,340.79 = 125,539.77/x - Step 3: Cross multiply
216,143.07x = 298,340.79 × 125,539.77 - Step 4: Simplify right side
216,143.07x = 37,453,634,158.22 - Step 5: Solve for x
x = 37,453,634,158.22/216,143.07 - Step 6: Final answer
x = 173,281.68
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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.