Finding the Fourth Proportional to 381,299.84, 526,208.64 and 211,541.12
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Solution
The fourth proportional to 381,299.84, 526,208.64 and 211,541.12 is: 291,934.99
Step by Step Solution
- Step 1: Write the proportion equation
381,299.84 : 526,208.64 = 211,541.12 : x - Step 2: Convert to fraction form
381,299.84/526,208.64 = 211,541.12/x - Step 3: Cross multiply
381,299.84x = 526,208.64 × 211,541.12 - Step 4: Simplify right side
381,299.84x = 111,314,765,059.28 - Step 5: Solve for x
x = 111,314,765,059.28/381,299.84 - Step 6: Final answer
x = 291,934.99
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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.