Finding the Fourth Proportional to 397,037.49, 547,689.97 and 243,969.36
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Solution
The fourth proportional to 397,037.49, 547,689.97 and 243,969.36 is: 336,541.45
Step by Step Solution
- Step 1: Write the proportion equation
397,037.49 : 547,689.97 = 243,969.36 : x - Step 2: Convert to fraction form
397,037.49/547,689.97 = 243,969.36/x - Step 3: Cross multiply
397,037.49x = 547,689.97 × 243,969.36 - Step 4: Simplify right side
397,037.49x = 133,619,571,459.32 - Step 5: Solve for x
x = 133,619,571,459.32/397,037.49 - Step 6: Final answer
x = 336,541.45
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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.