Finding the Fourth Proportional to 355,710.63, 490,875.32 and 212,442.99
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Solution
The fourth proportional to 355,710.63, 490,875.32 and 212,442.99 is: 293,168.13
Step by Step Solution
- Step 1: Write the proportion equation
355,710.63 : 490,875.32 = 212,442.99 : x - Step 2: Convert to fraction form
355,710.63/490,875.32 = 212,442.99/x - Step 3: Cross multiply
355,710.63x = 490,875.32 × 212,442.99 - Step 4: Simplify right side
355,710.63x = 104,283,020,862.98 - Step 5: Solve for x
x = 104,283,020,862.98/355,710.63 - Step 6: Final answer
x = 293,168.13
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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.