Finding the Fourth Proportional to 320,702.64, 442,563.12 and 177,454.20
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Solution
The fourth proportional to 320,702.64, 442,563.12 and 177,454.20 is: 244,883.19
Step by Step Solution
- Step 1: Write the proportion equation
320,702.64 : 442,563.12 = 177,454.20 : x - Step 2: Convert to fraction form
320,702.64/442,563.12 = 177,454.20/x - Step 3: Cross multiply
320,702.64x = 442,563.12 × 177,454.20 - Step 4: Simplify right side
320,702.64x = 78,534,684,409.10 - Step 5: Solve for x
x = 78,534,684,409.10/320,702.64 - Step 6: Final answer
x = 244,883.19
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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.