Finding the Fourth Proportional to 402,410.34, 555,326.12 and 221,133.96
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Solution
The fourth proportional to 402,410.34, 555,326.12 and 221,133.96 is: 305,164.78
Step by Step Solution
- Step 1: Write the proportion equation
402,410.34 : 555,326.12 = 221,133.96 : x - Step 2: Convert to fraction form
402,410.34/555,326.12 = 221,133.96/x - Step 3: Cross multiply
402,410.34x = 555,326.12 × 221,133.96 - Step 4: Simplify right side
402,410.34x = 122,801,464,007.04 - Step 5: Solve for x
x = 122,801,464,007.04/402,410.34 - Step 6: Final answer
x = 305,164.78
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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.