Finding the Fourth Proportional to 290,078.84, 435,065.34 and 121,554.08
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Solution
The fourth proportional to 290,078.84, 435,065.34 and 121,554.08 is: 182,308.94
Step by Step Solution
- Step 1: Write the proportion equation
290,078.84 : 435,065.34 = 121,554.08 : x - Step 2: Convert to fraction form
290,078.84/435,065.34 = 121,554.08/x - Step 3: Cross multiply
290,078.84x = 435,065.34 × 121,554.08 - Step 4: Simplify right side
290,078.84x = 52,883,967,143.59 - Step 5: Solve for x
x = 52,883,967,143.59/290,078.84 - Step 6: Final answer
x = 182,308.94
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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.