Finding the Fourth Proportional to 145,420.53, 218,135.65 and 40,230.69
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Solution
The fourth proportional to 145,420.53, 218,135.65 and 40,230.69 is: 60,347.38
Step by Step Solution
- Step 1: Write the proportion equation
145,420.53 : 218,135.65 = 40,230.69 : x - Step 2: Convert to fraction form
145,420.53/218,135.65 = 40,230.69/x - Step 3: Cross multiply
145,420.53x = 218,135.65 × 40,230.69 - Step 4: Simplify right side
145,420.53x = 8,775,747,713.10 - Step 5: Solve for x
x = 8,775,747,713.10/145,420.53 - Step 6: Final answer
x = 60,347.38
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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.