Finding the Fourth Proportional to 313,907.20, 470,860.80 and 224,972.80
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Solution
The fourth proportional to 313,907.20, 470,860.80 and 224,972.80 is: 337,459.20
Step by Step Solution
- Step 1: Write the proportion equation
313,907.20 : 470,860.80 = 224,972.80 : x - Step 2: Convert to fraction form
313,907.20/470,860.80 = 224,972.80/x - Step 3: Cross multiply
313,907.20x = 470,860.80 × 224,972.80 - Step 4: Simplify right side
313,907.20x = 105,930,872,586.24 - Step 5: Solve for x
x = 105,930,872,586.24/313,907.20 - Step 6: Final answer
x = 337,459.20
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1.5x scale
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.