Finding the Fourth Proportional to 402,652.05, 555,645.67 and 221,362.66
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Solution
The fourth proportional to 402,652.05, 555,645.67 and 221,362.66 is: 305,472.68
Step by Step Solution
- Step 1: Write the proportion equation
402,652.05 : 555,645.67 = 221,362.66 : x - Step 2: Convert to fraction form
402,652.05/555,645.67 = 221,362.66/x - Step 3: Cross multiply
402,652.05x = 555,645.67 × 221,362.66 - Step 4: Simplify right side
402,652.05x = 122,999,201,586.16 - Step 5: Solve for x
x = 122,999,201,586.16/402,652.05 - Step 6: Final answer
x = 305,472.68
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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.