Finding the Fourth Proportional to 216,140.30, 298,273.31 and 120,646.99
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Solution
The fourth proportional to 216,140.30, 298,273.31 and 120,646.99 is: 166,492.68
Step by Step Solution
- Step 1: Write the proportion equation
216,140.30 : 298,273.31 = 120,646.99 : x - Step 2: Convert to fraction form
216,140.30/298,273.31 = 120,646.99/x - Step 3: Cross multiply
216,140.30x = 298,273.31 × 120,646.99 - Step 4: Simplify right side
216,140.30x = 35,985,778,449.08 - Step 5: Solve for x
x = 35,985,778,449.08/216,140.30 - Step 6: Final answer
x = 166,492.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.