Finding the Fourth Proportional to 331,655.14, 457,757.94 and 210,772.84
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Solution
The fourth proportional to 331,655.14, 457,757.94 and 210,772.84 is: 290,913.45
Step by Step Solution
- Step 1: Write the proportion equation
331,655.14 : 457,757.94 = 210,772.84 : x - Step 2: Convert to fraction form
331,655.14/457,757.94 = 210,772.84/x - Step 3: Cross multiply
331,655.14x = 457,757.94 × 210,772.84 - Step 4: Simplify right side
331,655.14x = 96,482,941,046.35 - Step 5: Solve for x
x = 96,482,941,046.35/331,655.14 - Step 6: Final answer
x = 290,913.45
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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.