Finding the Fourth Proportional to 348,639.06, 481,405.50 and 284,117.80
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Solution
The fourth proportional to 348,639.06, 481,405.50 and 284,117.80 is: 392,313.68
Step by Step Solution
- Step 1: Write the proportion equation
348,639.06 : 481,405.50 = 284,117.80 : x - Step 2: Convert to fraction form
348,639.06/481,405.50 = 284,117.80/x - Step 3: Cross multiply
348,639.06x = 481,405.50 × 284,117.80 - Step 4: Simplify right side
348,639.06x = 136,775,871,567.90 - Step 5: Solve for x
x = 136,775,871,567.90/348,639.06 - Step 6: Final answer
x = 392,313.68
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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.