Finding the Fourth Proportional to 311,420.34, 467,130.50 and 74,763.02
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Solution
The fourth proportional to 311,420.34, 467,130.50 and 74,763.02 is: 112,144.53
Step by Step Solution
- Step 1: Write the proportion equation
311,420.34 : 467,130.50 = 74,763.02 : x - Step 2: Convert to fraction form
311,420.34/467,130.50 = 74,763.02/x - Step 3: Cross multiply
311,420.34x = 467,130.50 × 74,763.02 - Step 4: Simplify right side
311,420.34x = 34,924,086,914.11 - Step 5: Solve for x
x = 34,924,086,914.11/311,420.34 - Step 6: Final answer
x = 112,144.53
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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.