Finding the Fourth Proportional to 303,521.80, 455,657.10 and 191,201.80
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Solution
The fourth proportional to 303,521.80, 455,657.10 and 191,201.80 is: 287,038.55
Step by Step Solution
- Step 1: Write the proportion equation
303,521.80 : 455,657.10 = 191,201.80 : x - Step 2: Convert to fraction form
303,521.80/455,657.10 = 191,201.80/x - Step 3: Cross multiply
303,521.80x = 455,657.10 × 191,201.80 - Step 4: Simplify right side
303,521.80x = 87,122,457,702.78 - Step 5: Solve for x
x = 87,122,457,702.78/303,521.80 - Step 6: Final answer
x = 287,038.55
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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.