Finding the Fourth Proportional to 372,277.20, 558,415.80 and 147,691.20
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Solution
The fourth proportional to 372,277.20, 558,415.80 and 147,691.20 is: 221,536.80
Step by Step Solution
- Step 1: Write the proportion equation
372,277.20 : 558,415.80 = 147,691.20 : x - Step 2: Convert to fraction form
372,277.20/558,415.80 = 147,691.20/x - Step 3: Cross multiply
372,277.20x = 558,415.80 × 147,691.20 - Step 4: Simplify right side
372,277.20x = 82,473,099,600.96 - Step 5: Solve for x
x = 82,473,099,600.96/372,277.20 - Step 6: Final answer
x = 221,536.80
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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.