Finding the Fourth Proportional to 402,259.78, 555,122.02 and 220,975.40
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Solution
The fourth proportional to 402,259.78, 555,122.02 and 220,975.40 is: 304,947.99
Step by Step Solution
- Step 1: Write the proportion equation
402,259.78 : 555,122.02 = 220,975.40 : x - Step 2: Convert to fraction form
402,259.78/555,122.02 = 220,975.40/x - Step 3: Cross multiply
402,259.78x = 555,122.02 × 220,975.40 - Step 4: Simplify right side
402,259.78x = 122,668,310,418.31 - Step 5: Solve for x
x = 122,668,310,418.31/402,259.78 - Step 6: Final answer
x = 304,947.99
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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.