Finding the Fourth Proportional to 356,489.71, 491,955.80 and 205,586.71
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Solution
The fourth proportional to 356,489.71, 491,955.80 and 205,586.71 is: 283,709.66
Step by Step Solution
- Step 1: Write the proportion equation
356,489.71 : 491,955.80 = 205,586.71 : x - Step 2: Convert to fraction form
356,489.71/491,955.80 = 205,586.71/x - Step 3: Cross multiply
356,489.71x = 491,955.80 × 205,586.71 - Step 4: Simplify right side
356,489.71x = 101,139,574,387.42 - Step 5: Solve for x
x = 101,139,574,387.42/356,489.71 - Step 6: Final answer
x = 283,709.66
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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.