Finding the Fourth Proportional to 153,387.21, 229,774.50 and 121,850.67
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Solution
The fourth proportional to 153,387.21, 229,774.50 and 121,850.67 is: 182,532.67
Step by Step Solution
- Step 1: Write the proportion equation
153,387.21 : 229,774.50 = 121,850.67 : x - Step 2: Convert to fraction form
153,387.21/229,774.50 = 121,850.67/x - Step 3: Cross multiply
153,387.21x = 229,774.50 × 121,850.67 - Step 4: Simplify right side
153,387.21x = 27,998,176,773.92 - Step 5: Solve for x
x = 27,998,176,773.92/153,387.21 - Step 6: Final answer
x = 182,532.67
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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.