Finding the Fourth Proportional to 356,134.70, 491,471.75 and 194,987.09
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Solution
The fourth proportional to 356,134.70, 491,471.75 and 194,987.09 is: 269,085.39
Step by Step Solution
- Step 1: Write the proportion equation
356,134.70 : 491,471.75 = 194,987.09 : x - Step 2: Convert to fraction form
356,134.70/491,471.75 = 194,987.09/x - Step 3: Cross multiply
356,134.70x = 491,471.75 × 194,987.09 - Step 4: Simplify right side
356,134.70x = 95,830,646,349.71 - Step 5: Solve for x
x = 95,830,646,349.71/356,134.70 - Step 6: Final answer
x = 269,085.39
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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.