Finding the Fourth Proportional to 311,866.42, 430,373.56 and 175,901.49
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Solution
The fourth proportional to 311,866.42, 430,373.56 and 175,901.49 is: 242,742.87
Step by Step Solution
- Step 1: Write the proportion equation
311,866.42 : 430,373.56 = 175,901.49 : x - Step 2: Convert to fraction form
311,866.42/430,373.56 = 175,901.49/x - Step 3: Cross multiply
311,866.42x = 430,373.56 × 175,901.49 - Step 4: Simplify right side
311,866.42x = 75,703,350,460.60 - Step 5: Solve for x
x = 75,703,350,460.60/311,866.42 - Step 6: Final answer
x = 242,742.87
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1.5x scale
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.