Finding the Fourth Proportional to 287,286.08, 430,784.88 and 167,381.84
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Solution
The fourth proportional to 287,286.08, 430,784.88 and 167,381.84 is: 250,988.72
Step by Step Solution
- Step 1: Write the proportion equation
287,286.08 : 430,784.88 = 167,381.84 : x - Step 2: Convert to fraction form
287,286.08/430,784.88 = 167,381.84/x - Step 3: Cross multiply
287,286.08x = 430,784.88 × 167,381.84 - Step 4: Simplify right side
287,286.08x = 72,105,565,858.58 - Step 5: Solve for x
x = 72,105,565,858.58/287,286.08 - Step 6: Final answer
x = 250,988.72
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1.5x scale
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.