Finding the Fourth Proportional to 235,916.84, 325,568.95 and 128,486.79
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Solution
The fourth proportional to 235,916.84, 325,568.95 and 128,486.79 is: 177,313.79
Step by Step Solution
- Step 1: Write the proportion equation
235,916.84 : 325,568.95 = 128,486.79 : x - Step 2: Convert to fraction form
235,916.84/325,568.95 = 128,486.79/x - Step 3: Cross multiply
235,916.84x = 325,568.95 × 128,486.79 - Step 4: Simplify right side
235,916.84x = 41,831,309,309.17 - Step 5: Solve for x
x = 41,831,309,309.17/235,916.84 - Step 6: Final answer
x = 177,313.79
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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.