Finding the Fourth Proportional to 372,453.30, 558,679.95 and 135,965.70
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Solution
The fourth proportional to 372,453.30, 558,679.95 and 135,965.70 is: 203,948.55
Step by Step Solution
- Step 1: Write the proportion equation
372,453.30 : 558,679.95 = 135,965.70 : x - Step 2: Convert to fraction form
372,453.30/558,679.95 = 135,965.70/x - Step 3: Cross multiply
372,453.30x = 558,679.95 × 135,965.70 - Step 4: Simplify right side
372,453.30x = 75,961,310,477.72 - Step 5: Solve for x
x = 75,961,310,477.72/372,453.30 - Step 6: Final answer
x = 203,948.55
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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.