Finding the Fourth Proportional to 287,188.56, 430,782.84 and 129,232.48
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Solution
The fourth proportional to 287,188.56, 430,782.84 and 129,232.48 is: 193,848.72
Step by Step Solution
- Step 1: Write the proportion equation
287,188.56 : 430,782.84 = 129,232.48 : x - Step 2: Convert to fraction form
287,188.56/430,782.84 = 129,232.48/x - Step 3: Cross multiply
287,188.56x = 430,782.84 × 129,232.48 - Step 4: Simplify right side
287,188.56x = 55,671,134,754.64 - Step 5: Solve for x
x = 55,671,134,754.64/287,188.56 - Step 6: Final answer
x = 193,848.72
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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.