Finding the Fourth Proportional to 478,665.08, 718,130.68 and 208,816.82
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Solution
The fourth proportional to 478,665.08, 718,130.68 and 208,816.82 is: 313,283.28
Step by Step Solution
- Step 1: Write the proportion equation
478,665.08 : 718,130.68 = 208,816.82 : x - Step 2: Convert to fraction form
478,665.08/718,130.68 = 208,816.82/x - Step 3: Cross multiply
478,665.08x = 718,130.68 × 208,816.82 - Step 4: Simplify right side
478,665.08x = 149,957,764,942.04 - Step 5: Solve for x
x = 149,957,764,942.04/478,665.08 - Step 6: Final answer
x = 313,283.28
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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.