Finding the Fourth Proportional to 207,671.84, 311,533.68 and 81,295.76
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Solution
The fourth proportional to 207,671.84, 311,533.68 and 81,295.76 is: 121,953.79
Step by Step Solution
- Step 1: Write the proportion equation
207,671.84 : 311,533.68 = 81,295.76 : x - Step 2: Convert to fraction form
207,671.84/311,533.68 = 81,295.76/x - Step 3: Cross multiply
207,671.84x = 311,533.68 × 81,295.76 - Step 4: Simplify right side
207,671.84x = 25,326,367,281.20 - Step 5: Solve for x
x = 25,326,367,281.20/207,671.84 - Step 6: Final answer
x = 121,953.79
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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.