Finding the Fourth Proportional to 279,745.20, 419,292.36 and 159,886.08
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Solution
The fourth proportional to 279,745.20, 419,292.36 and 159,886.08 is: 239,643.12
Step by Step Solution
- Step 1: Write the proportion equation
279,745.20 : 419,292.36 = 159,886.08 : x - Step 2: Convert to fraction form
279,745.20/419,292.36 = 159,886.08/x - Step 3: Cross multiply
279,745.20x = 419,292.36 × 159,886.08 - Step 4: Simplify right side
279,745.20x = 67,039,011,814.35 - Step 5: Solve for x
x = 67,039,011,814.35/279,745.20 - Step 6: Final answer
x = 239,643.12
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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.