Finding the Fourth Proportional to 258,588.99, 356,868.86 and 143,893.23
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Solution
The fourth proportional to 258,588.99, 356,868.86 and 143,893.23 is: 198,581.58
Step by Step Solution
- Step 1: Write the proportion equation
258,588.99 : 356,868.86 = 143,893.23 : x - Step 2: Convert to fraction form
258,588.99/356,868.86 = 143,893.23/x - Step 3: Cross multiply
258,588.99x = 356,868.86 × 143,893.23 - Step 4: Simplify right side
258,588.99x = 51,351,010,448.01 - Step 5: Solve for x
x = 51,351,010,448.01/258,588.99 - Step 6: Final answer
x = 198,581.58
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.