Finding the Fourth Proportional to 235,420.84, 324,884.29 and 127,990.63
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Solution
The fourth proportional to 235,420.84, 324,884.29 and 127,990.63 is: 176,628.99
Step by Step Solution
- Step 1: Write the proportion equation
235,420.84 : 324,884.29 = 127,990.63 : x - Step 2: Convert to fraction form
235,420.84/324,884.29 = 127,990.63/x - Step 3: Cross multiply
235,420.84x = 324,884.29 × 127,990.63 - Step 4: Simplify right side
235,420.84x = 41,582,144,954.20 - Step 5: Solve for x
x = 41,582,144,954.20/235,420.84 - Step 6: Final answer
x = 176,628.99
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1.5x scale
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.