Finding the Fourth Proportional to 145,830.05, 218,823.49 and 140,522.08
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Solution
The fourth proportional to 145,830.05, 218,823.49 and 140,522.08 is: 210,858.68
Step by Step Solution
- Step 1: Write the proportion equation
145,830.05 : 218,823.49 = 140,522.08 : x - Step 2: Convert to fraction form
145,830.05/218,823.49 = 140,522.08/x - Step 3: Cross multiply
145,830.05x = 218,823.49 × 140,522.08 - Step 4: Simplify right side
145,830.05x = 30,749,530,873.54 - Step 5: Solve for x
x = 30,749,530,873.54/145,830.05 - Step 6: Final answer
x = 210,858.68
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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.