Finding the Fourth Proportional to 372,947.20, 559,420.80 and 173,201.20
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Solution
The fourth proportional to 372,947.20, 559,420.80 and 173,201.20 is: 259,801.80
Step by Step Solution
- Step 1: Write the proportion equation
372,947.20 : 559,420.80 = 173,201.20 : x - Step 2: Convert to fraction form
372,947.20/559,420.80 = 173,201.20/x - Step 3: Cross multiply
372,947.20x = 559,420.80 × 173,201.20 - Step 4: Simplify right side
372,947.20x = 96,892,353,864.96 - Step 5: Solve for x
x = 96,892,353,864.96/372,947.20 - Step 6: Final answer
x = 259,801.80
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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.