Finding the Fourth Proportional to 356,405.08, 491,838.84 and 213,165.12
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Solution
The fourth proportional to 356,405.08, 491,838.84 and 213,165.12 is: 294,167.76
Step by Step Solution
- Step 1: Write the proportion equation
356,405.08 : 491,838.84 = 213,165.12 : x - Step 2: Convert to fraction form
356,405.08/491,838.84 = 213,165.12/x - Step 3: Cross multiply
356,405.08x = 491,838.84 × 213,165.12 - Step 4: Simplify right side
356,405.08x = 104,842,885,349.26 - Step 5: Solve for x
x = 104,842,885,349.26/356,405.08 - Step 6: Final answer
x = 294,167.76
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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.