Finding the Fourth Proportional to 356,235.20, 534,388.80 and 131,655.68
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Solution
The fourth proportional to 356,235.20, 534,388.80 and 131,655.68 is: 197,496.82
Step by Step Solution
- Step 1: Write the proportion equation
356,235.20 : 534,388.80 = 131,655.68 : x - Step 2: Convert to fraction form
356,235.20/534,388.80 = 131,655.68/x - Step 3: Cross multiply
356,235.20x = 534,388.80 × 131,655.68 - Step 4: Simplify right side
356,235.20x = 70,355,320,848.38 - Step 5: Solve for x
x = 70,355,320,848.38/356,235.20 - Step 6: Final answer
x = 197,496.82
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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.