Finding the Fourth Proportional to 346,531.20, 519,796.80 and 311,101.80
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Solution
The fourth proportional to 346,531.20, 519,796.80 and 311,101.80 is: 466,652.70
Step by Step Solution
- Step 1: Write the proportion equation
346,531.20 : 519,796.80 = 311,101.80 : x - Step 2: Convert to fraction form
346,531.20/519,796.80 = 311,101.80/x - Step 3: Cross multiply
346,531.20x = 519,796.80 × 311,101.80 - Step 4: Simplify right side
346,531.20x = 161,709,720,114.24 - Step 5: Solve for x
x = 161,709,720,114.24/346,531.20 - Step 6: Final answer
x = 466,652.70
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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.