Finding the Fourth Proportional to 402,305.41, 555,191.25 and 221,029.08
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Solution
The fourth proportional to 402,305.41, 555,191.25 and 221,029.08 is: 305,025.51
Step by Step Solution
- Step 1: Write the proportion equation
402,305.41 : 555,191.25 = 221,029.08 : x - Step 2: Convert to fraction form
402,305.41/555,191.25 = 221,029.08/x - Step 3: Cross multiply
402,305.41x = 555,191.25 × 221,029.08 - Step 4: Simplify right side
402,305.41x = 122,713,410,794.67 - Step 5: Solve for x
x = 122,713,410,794.67/402,305.41 - Step 6: Final answer
x = 305,025.51
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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.