Finding the Fourth Proportional to 320,076.58, 480,186.30 and 120,398.62
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Solution
The fourth proportional to 320,076.58, 480,186.30 and 120,398.62 is: 180,624.80
Step by Step Solution
- Step 1: Write the proportion equation
320,076.58 : 480,186.30 = 120,398.62 : x - Step 2: Convert to fraction form
320,076.58/480,186.30 = 120,398.62/x - Step 3: Cross multiply
320,076.58x = 480,186.30 × 120,398.62 - Step 4: Simplify right side
320,076.58x = 57,813,767,862.91 - Step 5: Solve for x
x = 57,813,767,862.91/320,076.58 - Step 6: Final answer
x = 180,624.80
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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.