Finding the Fourth Proportional to 313,482.24, 470,223.36 and 76,822.88
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Solution
The fourth proportional to 313,482.24, 470,223.36 and 76,822.88 is: 115,234.32
Step by Step Solution
- Step 1: Write the proportion equation
313,482.24 : 470,223.36 = 76,822.88 : x - Step 2: Convert to fraction form
313,482.24/470,223.36 = 76,822.88/x - Step 3: Cross multiply
313,482.24x = 470,223.36 × 76,822.88 - Step 4: Simplify right side
313,482.24x = 36,123,912,758.48 - Step 5: Solve for x
x = 36,123,912,758.48/313,482.24 - Step 6: Final answer
x = 115,234.32
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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.