Finding the Fourth Proportional to 287,106.08, 396,202.48 and 159,781.68
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Solution
The fourth proportional to 287,106.08, 396,202.48 and 159,781.68 is: 220,496.54
Step by Step Solution
- Step 1: Write the proportion equation
287,106.08 : 396,202.48 = 159,781.68 : x - Step 2: Convert to fraction form
287,106.08/396,202.48 = 159,781.68/x - Step 3: Cross multiply
287,106.08x = 396,202.48 × 159,781.68 - Step 4: Simplify right side
287,106.08x = 63,305,897,475.11 - Step 5: Solve for x
x = 63,305,897,475.11/287,106.08 - Step 6: Final answer
x = 220,496.54
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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.