Finding the Fourth Proportional to 433,115.78, 649,378.02 and 230,742.14
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Solution
The fourth proportional to 433,115.78, 649,378.02 and 230,742.14 is: 345,955.70
Step by Step Solution
- Step 1: Write the proportion equation
433,115.78 : 649,378.02 = 230,742.14 : x - Step 2: Convert to fraction form
433,115.78/649,378.02 = 230,742.14/x - Step 3: Cross multiply
433,115.78x = 649,378.02 × 230,742.14 - Step 4: Simplify right side
433,115.78x = 149,838,874,003.76 - Step 5: Solve for x
x = 149,838,874,003.76/433,115.78 - Step 6: Final answer
x = 345,955.70
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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.