Finding the Fourth Proportional to 402,839.74, 555,927.72 and 221,560.84
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Solution
The fourth proportional to 402,839.74, 555,927.72 and 221,560.84 is: 305,758.84
Step by Step Solution
- Step 1: Write the proportion equation
402,839.74 : 555,927.72 = 221,560.84 : x - Step 2: Convert to fraction form
402,839.74/555,927.72 = 221,560.84/x - Step 3: Cross multiply
402,839.74x = 555,927.72 × 221,560.84 - Step 4: Simplify right side
402,839.74x = 123,171,812,622.49 - Step 5: Solve for x
x = 123,171,812,622.49/402,839.74 - Step 6: Final answer
x = 305,758.84
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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.