Finding the Fourth Proportional to 315,405.20, 473,107.80 and 203,430.80
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Solution
The fourth proportional to 315,405.20, 473,107.80 and 203,430.80 is: 305,146.20
Step by Step Solution
- Step 1: Write the proportion equation
315,405.20 : 473,107.80 = 203,430.80 : x - Step 2: Convert to fraction form
315,405.20/473,107.80 = 203,430.80/x - Step 3: Cross multiply
315,405.20x = 473,107.80 × 203,430.80 - Step 4: Simplify right side
315,405.20x = 96,244,698,240.24 - Step 5: Solve for x
x = 96,244,698,240.24/315,405.20 - Step 6: Final answer
x = 305,146.20
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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.