Finding the Fourth Proportional to 402,880.08, 555,985.03 and 221,596.76
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Solution
The fourth proportional to 402,880.08, 555,985.03 and 221,596.76 is: 305,809.32
Step by Step Solution
- Step 1: Write the proportion equation
402,880.08 : 555,985.03 = 221,596.76 : x - Step 2: Convert to fraction form
402,880.08/555,985.03 = 221,596.76/x - Step 3: Cross multiply
402,880.08x = 555,985.03 × 221,596.76 - Step 4: Simplify right side
402,880.08x = 123,204,481,573.11 - Step 5: Solve for x
x = 123,204,481,573.11/402,880.08 - Step 6: Final answer
x = 305,809.32
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1.5x scale
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.