Finding the Fourth Proportional to 239,588.91, 359,415.77 and 81,774.99
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Solution
The fourth proportional to 239,588.91, 359,415.77 and 81,774.99 is: 122,673.54
Step by Step Solution
- Step 1: Write the proportion equation
239,588.91 : 359,415.77 = 81,774.99 : x - Step 2: Convert to fraction form
239,588.91/359,415.77 = 81,774.99/x - Step 3: Cross multiply
239,588.91x = 359,415.77 × 81,774.99 - Step 4: Simplify right side
239,588.91x = 29,391,220,588.72 - Step 5: Solve for x
x = 29,391,220,588.72/239,588.91 - Step 6: Final answer
x = 122,673.54
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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.