Finding the Fourth Proportional to 311,420.40, 429,801.84 and 175,480.80
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Solution
The fourth proportional to 311,420.40, 429,801.84 and 175,480.80 is: 242,186.99
Step by Step Solution
- Step 1: Write the proportion equation
311,420.40 : 429,801.84 = 175,480.80 : x - Step 2: Convert to fraction form
311,420.40/429,801.84 = 175,480.80/x - Step 3: Cross multiply
311,420.40x = 429,801.84 × 175,480.80 - Step 4: Simplify right side
311,420.40x = 75,421,970,724.67 - Step 5: Solve for x
x = 75,421,970,724.67/311,420.40 - Step 6: Final answer
x = 242,186.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.