Finding the Fourth Proportional to 312,133.58, 430,749.87 and 176,194.70
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Solution
The fourth proportional to 312,133.58, 430,749.87 and 176,194.70 is: 243,151.81
Step by Step Solution
- Step 1: Write the proportion equation
312,133.58 : 430,749.87 = 176,194.70 : x - Step 2: Convert to fraction form
312,133.58/430,749.87 = 176,194.70/x - Step 3: Cross multiply
312,133.58x = 430,749.87 × 176,194.70 - Step 4: Simplify right side
312,133.58x = 75,895,844,119.69 - Step 5: Solve for x
x = 75,895,844,119.69/312,133.58 - Step 6: Final answer
x = 243,151.81
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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.