Finding the Fourth Proportional to 287,671.36, 396,988.44 and 160,354.96
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Solution
The fourth proportional to 287,671.36, 396,988.44 and 160,354.96 is: 221,290.94
Step by Step Solution
- Step 1: Write the proportion equation
287,671.36 : 396,988.44 = 160,354.96 : x - Step 2: Convert to fraction form
287,671.36/396,988.44 = 160,354.96/x - Step 3: Cross multiply
287,671.36x = 396,988.44 × 160,354.96 - Step 4: Simplify right side
287,671.36x = 63,659,065,416.66 - Step 5: Solve for x
x = 63,659,065,416.66/287,671.36 - Step 6: Final answer
x = 221,290.94
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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.