Finding the Fourth Proportional to 372,432.80, 558,649.20 and 135,783.20
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Solution
The fourth proportional to 372,432.80, 558,649.20 and 135,783.20 is: 203,674.80
Step by Step Solution
- Step 1: Write the proportion equation
372,432.80 : 558,649.20 = 135,783.20 : x - Step 2: Convert to fraction form
372,432.80/558,649.20 = 135,783.20/x - Step 3: Cross multiply
372,432.80x = 558,649.20 × 135,783.20 - Step 4: Simplify right side
372,432.80x = 75,855,176,053.44 - Step 5: Solve for x
x = 75,855,176,053.44/372,432.80 - Step 6: Final answer
x = 203,674.80
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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.