Finding the Fourth Proportional to 311,903.14, 430,416.62 and 175,935.10
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Solution
The fourth proportional to 311,903.14, 430,416.62 and 175,935.10 is: 242,784.96
Step by Step Solution
- Step 1: Write the proportion equation
311,903.14 : 430,416.62 = 175,935.10 : x - Step 2: Convert to fraction form
311,903.14/430,416.62 = 175,935.10/x - Step 3: Cross multiply
311,903.14x = 430,416.62 × 175,935.10 - Step 4: Simplify right side
311,903.14x = 75,725,391,081.36 - Step 5: Solve for x
x = 75,725,391,081.36/311,903.14 - Step 6: Final answer
x = 242,784.96
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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.