Finding the Fourth Proportional to 157,315.80, 235,455.30 and 122,064.60
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Solution
The fourth proportional to 157,315.80, 235,455.30 and 122,064.60 is: 182,694.66
Step by Step Solution
- Step 1: Write the proportion equation
157,315.80 : 235,455.30 = 122,064.60 : x - Step 2: Convert to fraction form
157,315.80/235,455.30 = 122,064.60/x - Step 3: Cross multiply
157,315.80x = 235,455.30 × 122,064.60 - Step 4: Simplify right side
157,315.80x = 28,740,757,012.38 - Step 5: Solve for x
x = 28,740,757,012.38/157,315.80 - Step 6: Final answer
x = 182,694.66
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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.