Finding the Fourth Proportional to 402,816.95, 555,874.68 and 221,528.32
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Solution
The fourth proportional to 402,816.95, 555,874.68 and 221,528.32 is: 305,702.09
Step by Step Solution
- Step 1: Write the proportion equation
402,816.95 : 555,874.68 = 221,528.32 : x - Step 2: Convert to fraction form
402,816.95/555,874.68 = 221,528.32/x - Step 3: Cross multiply
402,816.95x = 555,874.68 × 221,528.32 - Step 4: Simplify right side
402,816.95x = 123,141,983,431.98 - Step 5: Solve for x
x = 123,141,983,431.98/402,816.95 - Step 6: Final answer
x = 305,702.09
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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.