Finding the Fourth Proportional to 216,423.14, 298,669.21 and 120,936.02
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Solution
The fourth proportional to 216,423.14, 298,669.21 and 120,936.02 is: 166,894.65
Step by Step Solution
- Step 1: Write the proportion equation
216,423.14 : 298,669.21 = 120,936.02 : x - Step 2: Convert to fraction form
216,423.14/298,669.21 = 120,936.02/x - Step 3: Cross multiply
216,423.14x = 298,669.21 × 120,936.02 - Step 4: Simplify right side
216,423.14x = 36,119,863,758.26 - Step 5: Solve for x
x = 36,119,863,758.26/216,423.14 - Step 6: Final answer
x = 166,894.65
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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.