Finding the Fourth Proportional to 402,464.64, 555,374.36 and 221,172.68
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Solution
The fourth proportional to 402,464.64, 555,374.36 and 221,172.68 is: 305,203.54
Step by Step Solution
- Step 1: Write the proportion equation
402,464.64 : 555,374.36 = 221,172.68 : x - Step 2: Convert to fraction form
402,464.64/555,374.36 = 221,172.68/x - Step 3: Cross multiply
402,464.64x = 555,374.36 × 221,172.68 - Step 4: Simplify right side
402,464.64x = 122,833,631,721.75 - Step 5: Solve for x
x = 122,833,631,721.75/402,464.64 - Step 6: Final answer
x = 305,203.54
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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.