Finding the Fourth Proportional to 216,475.20, 298,739.16 and 120,988.08
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Solution
The fourth proportional to 216,475.20, 298,739.16 and 120,988.08 is: 166,965.44
Step by Step Solution
- Step 1: Write the proportion equation
216,475.20 : 298,739.16 = 120,988.08 : x - Step 2: Convert to fraction form
216,475.20/298,739.16 = 120,988.08/x - Step 3: Cross multiply
216,475.20x = 298,739.16 × 120,988.08 - Step 4: Simplify right side
216,475.20x = 36,143,877,389.21 - Step 5: Solve for x
x = 36,143,877,389.21/216,475.20 - Step 6: Final answer
x = 166,965.44
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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.