Finding the Fourth Proportional to 402,725.30, 555,762.99 and 221,448.92
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Solution
The fourth proportional to 402,725.30, 555,762.99 and 221,448.92 is: 305,600.65
Step by Step Solution
- Step 1: Write the proportion equation
402,725.30 : 555,762.99 = 221,448.92 : x - Step 2: Convert to fraction form
402,725.30/555,762.99 = 221,448.92/x - Step 3: Cross multiply
402,725.30x = 555,762.99 × 221,448.92 - Step 4: Simplify right side
402,725.30x = 123,073,110,025.41 - Step 5: Solve for x
x = 123,073,110,025.41/402,725.30 - Step 6: Final answer
x = 305,600.65
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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.