Finding the Fourth Proportional to 261,588.25, 392,386.07 and 74,599.75
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Solution
The fourth proportional to 261,588.25, 392,386.07 and 74,599.75 is: 111,900.68
Step by Step Solution
- Step 1: Write the proportion equation
261,588.25 : 392,386.07 = 74,599.75 : x - Step 2: Convert to fraction form
261,588.25/392,386.07 = 74,599.75/x - Step 3: Cross multiply
261,588.25x = 392,386.07 × 74,599.75 - Step 4: Simplify right side
261,588.25x = 29,271,902,352.48 - Step 5: Solve for x
x = 29,271,902,352.48/261,588.25 - Step 6: Final answer
x = 111,900.68
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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.