Finding the Fourth Proportional to 287,567.64, 431,304.68 and 135,764.41
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Solution
The fourth proportional to 287,567.64, 431,304.68 and 135,764.41 is: 203,624.53
Step by Step Solution
- Step 1: Write the proportion equation
287,567.64 : 431,304.68 = 135,764.41 : x - Step 2: Convert to fraction form
287,567.64/431,304.68 = 135,764.41/x - Step 3: Cross multiply
287,567.64x = 431,304.68 × 135,764.41 - Step 4: Simplify right side
287,567.64x = 58,555,825,410.44 - Step 5: Solve for x
x = 58,555,825,410.44/287,567.64 - Step 6: Final answer
x = 203,624.53
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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.