Finding the Fourth Proportional to 287,529.12, 396,781.04 and 180,157.14
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Solution
The fourth proportional to 287,529.12, 396,781.04 and 180,157.14 is: 248,611.12
Step by Step Solution
- Step 1: Write the proportion equation
287,529.12 : 396,781.04 = 180,157.14 : x - Step 2: Convert to fraction form
287,529.12/396,781.04 = 180,157.14/x - Step 3: Cross multiply
287,529.12x = 396,781.04 × 180,157.14 - Step 4: Simplify right side
287,529.12x = 71,482,937,372.63 - Step 5: Solve for x
x = 71,482,937,372.63/287,529.12 - Step 6: Final answer
x = 248,611.12
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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.