Finding the Fourth Proportional to 405,010.14, 558,908.17 and 221,246.48
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Solution
The fourth proportional to 405,010.14, 558,908.17 and 221,246.48 is: 305,316.96
Step by Step Solution
- Step 1: Write the proportion equation
405,010.14 : 558,908.17 = 221,246.48 : x - Step 2: Convert to fraction form
405,010.14/558,908.17 = 221,246.48/x - Step 3: Cross multiply
405,010.14x = 558,908.17 × 221,246.48 - Step 4: Simplify right side
405,010.14x = 123,656,465,255.74 - Step 5: Solve for x
x = 123,656,465,255.74/405,010.14 - Step 6: Final answer
x = 305,316.96
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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.