Finding the Fourth Proportional to 216,272.25, 298,433.84 and 124,389.09
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Solution
The fourth proportional to 216,272.25, 298,433.84 and 124,389.09 is: 171,644.37
Step by Step Solution
- Step 1: Write the proportion equation
216,272.25 : 298,433.84 = 124,389.09 : x - Step 2: Convert to fraction form
216,272.25/298,433.84 = 124,389.09/x - Step 3: Cross multiply
216,272.25x = 298,433.84 × 124,389.09 - Step 4: Simplify right side
216,272.25x = 37,121,913,160.86 - Step 5: Solve for x
x = 37,121,913,160.86/216,272.25 - Step 6: Final answer
x = 171,644.37
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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.