Finding the Fourth Proportional to 402,726.14, 555,747.84 and 221,436.80
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Solution
The fourth proportional to 402,726.14, 555,747.84 and 221,436.80 is: 305,574.96
Step by Step Solution
- Step 1: Write the proportion equation
402,726.14 : 555,747.84 = 221,436.80 : x - Step 2: Convert to fraction form
402,726.14/555,747.84 = 221,436.80/x - Step 3: Cross multiply
402,726.14x = 555,747.84 × 221,436.80 - Step 4: Simplify right side
402,726.14x = 123,063,023,296.51 - Step 5: Solve for x
x = 123,063,023,296.51/402,726.14 - Step 6: Final answer
x = 305,574.96
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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.