Finding the Fourth Proportional to 470,135.20, 705,202.80 and 470,135.20
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Solution
The fourth proportional to 470,135.20, 705,202.80 and 470,135.20 is: 705,202.80
Step by Step Solution
- Step 1: Write the proportion equation
470,135.20 : 705,202.80 = 470,135.20 : x - Step 2: Convert to fraction form
470,135.20/705,202.80 = 470,135.20/x - Step 3: Cross multiply
470,135.20x = 705,202.80 × 470,135.20 - Step 4: Simplify right side
470,135.20x = 331,540,659,418.56 - Step 5: Solve for x
x = 331,540,659,418.56/470,135.20 - Step 6: Final answer
x = 705,202.80
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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.