Finding the Fourth Proportional to 356,419.91, 491,859.47 and 195,281.06
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Solution
The fourth proportional to 356,419.91, 491,859.47 and 195,281.06 is: 269,487.86
Step by Step Solution
- Step 1: Write the proportion equation
356,419.91 : 491,859.47 = 195,281.06 : x - Step 2: Convert to fraction form
356,419.91/491,859.47 = 195,281.06/x - Step 3: Cross multiply
356,419.91x = 491,859.47 × 195,281.06 - Step 4: Simplify right side
356,419.91x = 96,050,837,696.23 - Step 5: Solve for x
x = 96,050,837,696.23/356,419.91 - Step 6: Final answer
x = 269,487.86
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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.