Finding the Fourth Proportional to 295,276.70, 442,915.05 and 206,630.30
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Solution
The fourth proportional to 295,276.70, 442,915.05 and 206,630.30 is: 309,945.45
Step by Step Solution
- Step 1: Write the proportion equation
295,276.70 : 442,915.05 = 206,630.30 : x - Step 2: Convert to fraction form
295,276.70/442,915.05 = 206,630.30/x - Step 3: Cross multiply
295,276.70x = 442,915.05 × 206,630.30 - Step 4: Simplify right side
295,276.70x = 91,519,669,656.02 - Step 5: Solve for x
x = 91,519,669,656.02/295,276.70 - Step 6: Final answer
x = 309,945.45
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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.