Finding the Fourth Proportional to 216,210.06, 298,366.74 and 120,718.08
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Solution
The fourth proportional to 216,210.06, 298,366.74 and 120,718.08 is: 166,589.20
Step by Step Solution
- Step 1: Write the proportion equation
216,210.06 : 298,366.74 = 120,718.08 : x - Step 2: Convert to fraction form
216,210.06/298,366.74 = 120,718.08/x - Step 3: Cross multiply
216,210.06x = 298,366.74 × 120,718.08 - Step 4: Simplify right side
216,210.06x = 36,018,259,988.66 - Step 5: Solve for x
x = 36,018,259,988.66/216,210.06 - Step 6: Final answer
x = 166,589.20
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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.