Finding the Fourth Proportional to 402,866.75, 555,971.97 and 221,595.54
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Solution
The fourth proportional to 402,866.75, 555,971.97 and 221,595.54 is: 305,810.57
Step by Step Solution
- Step 1: Write the proportion equation
402,866.75 : 555,971.97 = 221,595.54 : x - Step 2: Convert to fraction form
402,866.75/555,971.97 = 221,595.54/x - Step 3: Cross multiply
402,866.75x = 555,971.97 × 221,595.54 - Step 4: Simplify right side
402,866.75x = 123,200,908,917.01 - Step 5: Solve for x
x = 123,200,908,917.01/402,866.75 - Step 6: Final answer
x = 305,810.57
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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.