Finding the Fourth Proportional to 261,568.23, 392,355.99 and 74,579.73
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Solution
The fourth proportional to 261,568.23, 392,355.99 and 74,579.73 is: 111,870.63
Step by Step Solution
- Step 1: Write the proportion equation
261,568.23 : 392,355.99 = 74,579.73 : x - Step 2: Convert to fraction form
261,568.23/392,355.99 = 74,579.73/x - Step 3: Cross multiply
261,568.23x = 392,355.99 × 74,579.73 - Step 4: Simplify right side
261,568.23x = 29,261,803,798.08 - Step 5: Solve for x
x = 29,261,803,798.08/261,568.23 - Step 6: Final answer
x = 111,870.63
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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.