Finding the Fourth Proportional to 402,772.91, 555,826.66 and 221,497.13
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Solution
The fourth proportional to 402,772.91, 555,826.66 and 221,497.13 is: 305,666.07
Step by Step Solution
- Step 1: Write the proportion equation
402,772.91 : 555,826.66 = 221,497.13 : x - Step 2: Convert to fraction form
402,772.91/555,826.66 = 221,497.13/x - Step 3: Cross multiply
402,772.91x = 555,826.66 × 221,497.13 - Step 4: Simplify right side
402,772.91x = 123,114,010,803.31 - Step 5: Solve for x
x = 123,114,010,803.31/402,772.91 - Step 6: Final answer
x = 305,666.07
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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.