Finding the Fourth Proportional to 313,932.21, 470,661.18 and 161,966.49
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Solution
The fourth proportional to 313,932.21, 470,661.18 and 161,966.49 is: 242,827.39
Step by Step Solution
- Step 1: Write the proportion equation
313,932.21 : 470,661.18 = 161,966.49 : x - Step 2: Convert to fraction form
313,932.21/470,661.18 = 161,966.49/x - Step 3: Cross multiply
313,932.21x = 470,661.18 × 161,966.49 - Step 4: Simplify right side
313,932.21x = 76,231,339,303.86 - Step 5: Solve for x
x = 76,231,339,303.86/313,932.21 - Step 6: Final answer
x = 242,827.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.