Finding the Fourth Proportional to 402,355.75, 555,260.93 and 221,079.42
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Solution
The fourth proportional to 402,355.75, 555,260.93 and 221,079.42 is: 305,095.09
Step by Step Solution
- Step 1: Write the proportion equation
402,355.75 : 555,260.93 = 221,079.42 : x - Step 2: Convert to fraction form
402,355.75/555,260.93 = 221,079.42/x - Step 3: Cross multiply
402,355.75x = 555,260.93 × 221,079.42 - Step 4: Simplify right side
402,355.75x = 122,756,764,353.06 - Step 5: Solve for x
x = 122,756,764,353.06/402,355.75 - Step 6: Final answer
x = 305,095.09
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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.