Finding the Fourth Proportional to 201,430.80, 301,708.80 and 122,698.80
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Solution
The fourth proportional to 201,430.80, 301,708.80 and 122,698.80 is: 183,781.76
Step by Step Solution
- Step 1: Write the proportion equation
201,430.80 : 301,708.80 = 122,698.80 : x - Step 2: Convert to fraction form
201,430.80/301,708.80 = 122,698.80/x - Step 3: Cross multiply
201,430.80x = 301,708.80 × 122,698.80 - Step 4: Simplify right side
201,430.80x = 37,019,307,709.44 - Step 5: Solve for x
x = 37,019,307,709.44/201,430.80 - Step 6: Final answer
x = 183,781.76
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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.