Finding the Fourth Proportional to 291,410.16, 437,139.99 and 81,048.09
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Solution
The fourth proportional to 291,410.16, 437,139.99 and 81,048.09 is: 121,579.03
Step by Step Solution
- Step 1: Write the proportion equation
291,410.16 : 437,139.99 = 81,048.09 : x - Step 2: Convert to fraction form
291,410.16/437,139.99 = 81,048.09/x - Step 3: Cross multiply
291,410.16x = 437,139.99 × 81,048.09 - Step 4: Simplify right side
291,410.16x = 35,429,362,891.39 - Step 5: Solve for x
x = 35,429,362,891.39/291,410.16 - Step 6: Final answer
x = 121,579.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.