Finding the Fourth Proportional to 402,560.83, 555,532.68 and 221,284.06
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Solution
The fourth proportional to 402,560.83, 555,532.68 and 221,284.06 is: 305,371.31
Step by Step Solution
- Step 1: Write the proportion equation
402,560.83 : 555,532.68 = 221,284.06 : x - Step 2: Convert to fraction form
402,560.83/555,532.68 = 221,284.06/x - Step 3: Cross multiply
402,560.83x = 555,532.68 × 221,284.06 - Step 4: Simplify right side
402,560.83x = 122,930,526,893.08 - Step 5: Solve for x
x = 122,930,526,893.08/402,560.83 - Step 6: Final answer
x = 305,371.31
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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.