Finding the Fourth Proportional to 102,292.80, 153,460.80 and 31,209.60
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Solution
The fourth proportional to 102,292.80, 153,460.80 and 31,209.60 is: 46,820.99
Step by Step Solution
- Step 1: Write the proportion equation
102,292.80 : 153,460.80 = 31,209.60 : x - Step 2: Convert to fraction form
102,292.80/153,460.80 = 31,209.60/x - Step 3: Cross multiply
102,292.80x = 153,460.80 × 31,209.60 - Step 4: Simplify right side
102,292.80x = 4,789,450,183.68 - Step 5: Solve for x
x = 4,789,450,183.68/102,292.80 - Step 6: Final answer
x = 46,820.99
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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.